Numbers of the Beast #2: A skew loose?

Posted in Indulgence, Uncategorized, music stats on June 24th, 2010 by Alex
Lemmy - A skew loose?

Lemmy - a skew loose?

So we’ve learned that some bands have pretty obsessive fans. It’s nice that they’re listening to a lot of Opeth’s music, but are they just getting gooey over one album or even a single track? Let me demonstrate what I mean at its most extreme – the one hit wonder. This is not a phenomenon that’s particularly prevalent in the metal genre, so we’ll look to the genre most susceptible: pop. When I think of one hit wonders, one track always seems to spring to mind: Deep Blue Something – Breakfast at Tiffany’s. It’s a nauseating ditty that seems to blight the airwaves still, even 17 years after its release. Let’s see what Deep Blue Something’s last.fm listener profile looks like shall we?

Deep Blue Something last.fm

Breakfast at Tiffany's and some other tracks

Oh dear, a staggering 83% of Deep Blue Something’s overall listens were from that one track that you doubtlessly find occasionally looping round in your brain, eating away at your soul. In statistical speak this effect is broadly referred to as Skew or Skewness. According to Wikipedia “In probability theory and statistics, skewness is a measure of the asymmetry of the probability distribution of a real-valued random variable.” Ummm, yes. Put more simply, and in the current context, if folks are listening to 1 or 2 songs from a bands catalogue lots, and hardly anything else, then that band’s playcount would be considered to be skewed. In last.fm circles, the calculation for this is often referred to as AEP (I won’t bore you with what it means, other than it’s a fairly arbitrary statistical calculation) which gives an indication of skew across a band’s top 50 tracks. The AEP is a value of between 0 and 5 that indicate skewness, where 5 is not skewed at all (all tracks listened to exactly that same amount of times) and 0 (or less) is very skewed. Thanks to that wretched track, Deep Blue Something’s AEP is -13 (yes minus 13), compared to, to pick another more successful pop act, Michael Jackson, whose AEP is a respectable 2.7.

So, how does my list of metal acts fare in the AEP stakes? Let’s have a look:

Artist AEP
Devin Townsend 4.43
Neurosis 4.41
Blind Guardian 4.37
Napalm Death 4.35
Opeth 4.32
System of a Down 4.3
Cathedral 4.29
In Flames 4.28
Tool 4.27
Children of Bodom 4.25

So here we see a different picture again. These are very high AEP’s, which indicates that the bands’ top 50 most listened to tracks are listened to a comparable amount of times. What this suggests about a band is that they’re not just a 1 trick pony – their fans love a wide variety of their tracks rather than listening to just a couple before moving on. Predictably, In Flames make a reappearance, Opeth remain strong, and we all knew that Devin Townsend fans were an obsessive bunch (this incidentally, doesn’t include all the numerous variations on Townsend’s solo band names, or SYL, who are #32 in this list). This is a respectable list – Neurosis, Tool, Cathedral, all at the top of their game and widely respected, and there’s a real mix of genres here. Perhaps this is a demonstration of a quality all round band, no filler. Albums bands, career artists.

This may all be true, but things get a lot more interesting, and confusing, if we consider the other end of my (far from exhaustive) list:

Artist AEP
Nirvana 3.03
Ozzy Osbourne 2.53
Black Sabbath 1.84
Soundgarden 1.69
Mötorhead -1.28

Yeah, a bunch of flash in the pan, one hit wonders – non-players. Oh wait…those would actually be some of the most revered and respected bands in the rock/metal arena! What went wrong? I’ll give you 5 reasons: Smells Like Teen Spirit, Crazy Train, Paranoid, Black Hole Sun and last, but by no means least, Ace of Spades. If you don’t know exactly what those 5 labels refer to, then you must have been living in a cave for the past 40 years. Now, for many of these bands, these tracks are the worst, but not the only, offender (Come as You Are is a close second for Nirvana for example), but each bands have significant skew thanks to these BIG hits in their back catalogue, something that few of our least skewed acts have. So we’re still missing a dimension here…

Let’s take Mötorhead, who are skewed into minus numbers by their ‘classic’ (quoted as Lemmy doesn’t reckon it’s their best track) Ace of Spades. Now, as we saw earlier, Breakfast at Tiffiny’s accounts for 83% of DBS’s overall listens, so what of Ace of Spades? Well, it clocks in at a modest 10% of Mötorhead overall listens. So where are all the other listens going? Well, remember that AEP is calculated across a band’s top 50 tracks, so the majority of listens of Mötorhead’s tracks must be happening outside of their top 50. Given Mötorhead’s rich and voluminous back catalogue this is hardly surprising.

So, there’s another calculation that will tell us which bands benefit from this sort of listener attention, it’s called the Long Tail and we’ll discuss this in the next article.

Related articles:

A long tail of a critical discrepancy

Numbers of the Beast #1: Love you long time

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Absence makes the heart grow…

Posted in Gigs, Indulgence, Reviews on June 12th, 2010 by Alex

It’s been a few weeks since I last posted, largely because I went on holiday, and I’m still recovering from the mental fug that left me in, and a mild case of writer’s block. A few things have transpired since I posted here. So, time for a short retrospect.

Pavement BrixtonPavement, O2 Brixton, Wednesday 12th May 2010
Their entire career lo-fi indie legends Pavement had displayed a flagrant disregard of convention, either musically or genre imposed, focussing more on the deconstruction of musical art rather than its fulfilment. Their live show is a glorious, ramshackle celebration of chaos, irony and bare faced lunacy. That’s not to say that Pavement don’t take their art seriously, it’s just that they don’t think art needs always to be so serious. Their entire back catalogue is spanned almost at random in a show that covered classics and obscurities in equal measure. The highlights were rabble rousing Unfair, Steve Malkmus throwing a hissy fit and throwing down his malfunctioning guitar on the floor half way through Summer Babe, and 5000 people shouting ‘NO BIG HAIR!’ at the culmination of Cut Your Hair.

Pavement are more punk than many a punk or hardcore band around today. I think some of this loose, lo-fi aesthetic and ethos is missing from the punk and metal genres. Once upon a time it was “pick up a guitar, learn 3 chords, write a song”. These days in metal it’s more like “pick up a guitar, a shed load of effects and Pro-Tools, learn Dream Theatre’s Octavarium, note perfect, from beginning to end, spend 2 years writing a prog metal epic”. But the pursuit of art isn’t confined to endless noodling, expanding, refining. Pick up Napalm Death’s Scum, and Pavement’s Crooked Rain, Crooked Rain and learn a little about experimentation.

Cathedral, ULU London, Thursday 29th April 2010
Doom should be played loud. The bass emitted by a doom show should loosen your teeth in their sockets. Whether it was the lack of sound check (the bands collectively arrived late) or some stupid sound regulation is unclear, but one way or another this show was nowhere near loud enough. Because of this, Japanese serial killer obsessed doom merchants Church of Misery, a band I’m not particularly familiar with, failed to have an impact on me, so I spent their set outside catching up a long lost friend that I’d bumped into on the night.

Cathedral too suffered with the auditory depravation, but still managed to put on a spirited show. Playing various tracks from their lauded new album The Guessing Game mixed in with classics such as Hopkins (Witchfinder General) and Ride, in all other facets the show was everything a Cathedral show should be. Singer (and bone fide doom legend) Lee Dorian’s manic flailing makes for an entertaining spectacle, and the crowd departed with a collective smile on their faces. Good enough for me.

RIP Ronnie James Dio
There’s nothing that I can say about Dio that hasn’t been said a million times by now. There are few icons in the metal genre that can match his stature and influence. Dio’s gargantuan voice formed a vital part of the soundtrack of my formative years. It is Dio and not Ozzy that provides that voice for my favourite Black Sabbath song:

His legacy is a fitting enough tribute in itself, and should speak (howl, wail, scream) for itself. Rest in Peace Ronnie, you will be missed.

The Inevitable Nose is 1 year old
On the 31st of May 2010 it was a year since my first post on this blog (I urge you not to waste your time checking out my early posts, they are poorly written, inaccurate nonsense for the most part), which in the intervening year, has formed a vital part of my existence. Started as a mechanism to recommend music to my mates, it soon turned into a musical odyssey that would have a massive impact on my life. I’ve discovered musical forms that I never knew existed, learned that I know nowhere near as much about music as I thought I did, met people who have become good friends who I otherwise would not have met, rediscovered old friends, helped found a forum and fanzine and improved my writing skills massively. It’s sometimes hard to remain interesting, relevant and maintain quality, but writing this blog never feels like a chore, and thus far has propelled me to fascinating and inspiring places. To those who have tuned in over the past year, thanks for listening, it’s been an absolute pleasure.

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Numbers of the Beast #1: Love you long time

Posted in music stats on May 3rd, 2010 by Alex

Since my bout of rampant music stats geekery I’ve been getting a tad OCD over the last.fm listening habits of you metal heads. So much so that I wrote a PHP application that queries the API and pulls back lots of lovely data (I’ll unleash this on the public when I’ve had the chance to debug it and tidy it up a bit). I’ve been munging and caressing the data to see what wonders it yields, some of which I’m going to share with you over a few articles.

Previously I uncovered In Flames fans’ obsessive behaviour by observing the interaction between their playcount and listeners. This is interesting, but only tells us part of the story. Just because a band’s fans listen to lots of their tracks, doesn’t mean that they spend that much time listening to them. Napalm Death fans listening to their debut album Scum will consume 28 tracks in 33 minutes, whereas Earth fans would only squeeze 1 track off of Earth 2 in that time. So we need to look at another dimension: track length. To do this I calculate the average track length from the band’s 50 most listened to tracks then multiply that by the overall playcount. This is what we get:

Band Average Song Length Total Minutes Listened
1 Metallica 5:56 769,675,558
2 Nine Inch Nails 4:26 436,266,693
3 Iron Maiden 5:43 396,650,321
4 Linkin Park 3:19 382,221,816
5 Tool 5:45 367,679,593

(Just in case you were wondering, that amounts to Metallica fans having collectively spent 1.5 centuries listening to their beloved band)

This doesn’t really change the picture that much. Metallica are still way out front, and the big boys still dominate. So let’s look at a slightly different stat – Average Time per Listener. We get this by multiplying the Plays per Listener with the Average Song Length. A pretty fuzzy calculation I know, but indicative none the less. Here’s what we get:

Band Average Listener time Average Song Length Plays per Listener
1 Opeth 9:35 7:26 77.41
2 Metallica 7:55 5:56 80.1
3 In Flames 7:38 3.50 119.55
4 Nightwish 6:39 5:01 79.35
5 Deathspell Omega 6:11 6:53 53.9

So here we see that Opeth fans spend quite a lot more time lost in the meanderings of Mr. Akerfeldt than any other band. In Flames, perhaps unsurprisingly, make a reappearance, and bringing up the rear, the real underdog, the dark lords of Orthodox Black Metal – Deathspell Omega.

Interestingly this does even the score somewhat with the critics list, as we now have Neurosis and Tool in the top 15, however, Black Sabbath suffer even greater humilation in this list as they drop down to number 49, just behind Lostprophets…ouch!

So, what does this tell us about the listening habits of the metal head? Well, I think it demonstrates that we’re and obsessive bunch, and we like what we like, and lots of it. Also, stats like this go some way to filtering out the noise of the casual listener and indicate where the real heart of the metal community lies.

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A long tail of a critical discrepancy

Posted in Indulgence, Music Industry, music stats on April 23rd, 2010 by Alex

last.fm's top metal artists

In this digital age of seemingly infinite choice of music that’s easy to access and at low cost (or free) it would easy to assume that the music listening masses would broaden their horizons a little. The Long Tail economy surely applies to music as much if not more than any other popular media. Not so according to various sales and download figures which suggest that in the current market, music sales are showing a higher propensity to the more popular tracks/artists than they did 5 years ago. There are various possible reasons for this (the paradox of choice, pack mentality, an explosion in poor taste) and it would be easy to dismiss this as this as mere statistics, but with recording artists struggling to cover costs and labels slashing rosters the harsh reality is only too obvious for some. What’s even more depressing is that there’s evidence in the movie and book worlds higher selling items often get better reviews, even when they suck. This is a known phenomenon:

In “Formal Theories of Mass Behaviour”, William McPhee noted that a disproportionate share of the audience for a hit was made up of people who consumed few products of that type. (Many other studies have since reached the same conclusion.) A lot of the people who read a bestselling novel, for example, do not read much other fiction. By contrast, the audience for an obscure novel is largely composed of people who read a lot. That means the least popular books are judged by people who have the highest standards, while the most popular are judged by people who literally do not know any better. An American who read just one book this year was disproportionately likely to have read “The Lost Symbol”, by Dan Brown. He almost certainly liked it.

Could this be the same for music and more specifically metal? My apparent snobbishness leads me to automatically assume that it doesn’t. Metal is a hugely diverse genre, and metal fans, despite being somewhat cliquey, are a diverse and contrary bunch who positively revel in the lonely outposts of the long tail. But is this really the case? I decided to do a little research on the matter. This lead me on a bit of an odyssey. I’m a closet stats junkie, and I’m easily distracted by trivia, so this is more of a journey than a destination, but I thought I’d share what I found anyway.

So firstly, do metallers show a propensity to rate popular music more highly? I headed off the social review site rateyourmusic.com and pulled the charts for the highest rated metal album of all time.

  1. Black Sabbath – Paranoid
  2. Metallica – Master of Puppets
  3. Black Sabbath – Master of Reality
  4. Black Sabbath – Black Sabbath
  5. Metallica – Ride the Lightning
  6. Megadeth – Rust in Peace
  7. Kyuss – Welcome to Sky Valley
  8. Tool – Ænima
  9. Slayer – Reign in Blood
  10. Death – Symbolic
  11. Opeth – Still Life
  12. Opeth – Blackwater Park
  13. Tool – Lateralus
  14. Iron Maiden – Powerslave
  15. Judas Priest – Painkiller

(full chart here)

Now, I’m not going to get into the relative merits or shortcomings of this list, I don’t really agree with it, however it seems reasonable and everything there certainly warrants a mention in the context of the best ever metal albums – there are no real stinkers here. The caveat here is that folks who write reviews on this site will tend to be self styled ‘critics’ rather than the casual listeners.

So, how does that compare to what people actually listen to. I pulled a (somewhat patchy) chart of overall listens of metal bands from last.fm.

Band Listens Listeners
1 Metallica 129,158,165 1,614,913
2 System of a Down 110,234,856 1,859,323
3 Nine Inch Nails 98,243,492 1,269,462
4 Nirvana 91,601,656 2,246,164
5 In Flames 77,571,473 648,985
6 Rammstein 74,874,781 1,080,014
7 Iron Maiden 71,102,754 1,118,305
8 Nightwish 66,186,512 830,576
9 Tool 63,722,501 1,021,247
10 Pearl Jam 59,373,659 1,405,955
11 Korn 59,012,020 1,316,256
12 Slipknot 56,894,546 1,112,724
13 AC/DC 56,358,687 1,414,917
14 Marilyn Manson 54,675,138 1,223,915
15 Queens of the Stone Age 52,970,037 1,273,775
16 Guns N Roses 51,825,756 1,673,338
17 Disturbed 48,310,602 1,116,727
18 Rage Against the Machine 45,688,191 1,556,924
19 Megadeth 40,307,528 729,446
20 Children of Bodom 38,347,666 562,446

Well, that’s a bit of a difference! Only 4 of the critics’ choice bands appear in the top 20 most listened. This is far from scientific, but it would seem that (Metallica excepted) metallers have a somewhat different perspective on what they think is of ‘quality’ and what they actually listen to. Clear critical favourites and genre instigators Black Sabbath are right down the rankings with 32,298,137 listens, lower even than perennial noughties favourites Opeth with 35,744,109 listens. And what’s with Korn in the top 15, I really didn’t think anyone seriously listened to them any more. And Nightwish? Really? The European influence I guess.

There’s quite a few caveats around this list, for example last.fm attract a certain demographic that’s perhaps not universally representative, plus song length will play a part (you can listen to 4 AC/DC songs in the time it takes to listen to 1 of Opeth’s), and this is last.fm’s lifetime list, so more established bands are more likely to appear, but it’s still indicative.

Anyway, I couldn’t make last.fm give me any data on overall lifetime listening stats for the metal genre, so calculating the long tail was impossible, and by now I was being distracted by the list I had compiled, and its various curiosities. For example, why the hell are In Flames so high? I realise they’re a pretty influential band, but they’re above Iron Maiden for gawd’s sake! The answer to this conundrum is in the listener figures. If you divide the total listens per band by the listeners you get a rough indication of listens per user. Order list by this value and you get a somewhat different picture.

Band Listens Listeners Plays per Listener
In Flames 77,571,473 648,985 120
Metallica 129,158,165 1,614,913 80
Nightwish 66,186,512 830,576 80
Nine Inch Nails 98,243,492 1,269,462 77
Opeth 35,744,109 462,064 77
Rammstein 74,874,781 1,080,014 69
Children of Bodom 38,347,666 562,446 68
Blind Guardian 26,270,993 407,215 65
Iron Maiden 71,102,754 1,118,305 64
Tool 63,722,501 1,021,247 62

As you can see, certain bands have more modest numbers of ‘fans’ with a propensity to listen to their music a hell of a lot. In Flames fans seem particularly enthusiastic about the band’s music. You’ll notice also that the list is considerably less ‘commercial’ with the likes of AC/DC, Slipknot and System of a Down disappearing from the top 10. This is explained when you look at the track play volume profiles of In Flames vs AC/DC:

In Flames

In Flames top tracks

AC/DC

AC/DC top tracks

The slope on the AC/DC is much more pronounced. Essentially, many more people are listening to a much smaller selection of AC/DC tracks, probably hitting Back in Black in their collection every so often, amongst Lady GaGa or U2. In Flames fans listen to a much greater selection of tracks, and probably favour albums over single tracks, thus driving the overall play count per listener up.

What’s also curious is that Black Sabbath, who dominate the critics album list, have a somewhat low plays per listener count of 27. Coming into this with no knowledge of the Sabbath you may assume, on viewing the critics’ list, that  they are an albums band, which is true to an extent, however, Sabbath’s profile is insanely skewed towards Paranoid and Iron Man which suggests that they attract a lot of casual listeners:

Black Sabbath play list

Anyway, I could noodle about with figures and stats all day, but where is this getting us? Well, we could surmise that the critics and fans aren’t really in agreement when it comes to voting with their feet. This is also evident in the public arena – Terrorizer Magazine’s albums of 2009 put Converge and Cobalt at the top and Behemoth somewhere in the 30′s, whereas the fan survey put Behemoth at the top of almost every category. On the other hand, Metalsucks famously triggered a minor insurgency when their poll of the top 21 albums of the 21st century – voted for by critics, bands and industry types – was mauled by their more discerning readership.

I’m really keen to understand whether metal is a long tail genre in comparison to, for example, Pop which I assume is by definition a populist genre, but decent stats are hard to come by. It’s a murky picture and one that dominated by dodgy data, countless caveats, spurious statistics, cliques and fraternities, but my quest will continue, to understand what makes the metal world tick.

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Running with the Devil

Posted in Indulgence on March 3rd, 2010 by Alex

Homer runningIt may not be very metal to admit this, but I’ll pretend to be kvlt and not give a f*ck what you think – I go running several times a week. It’s a pastime that I actually quite enjoy. I do it as much for getting rid of anger and aggression as the calories I accrue from regular consumption of booze and lard, and for this reason heavy music is the perfect accompaniment to this solitary activity.

However, not any old heavy music will do for a good power jog. I listen to music while running for several reasons:

  1. Distraction – it really helps me to forget about any pain or exhaustion and get into the meditative state
  2. Noise – I find hearing my own breathing is a real reminder of the energy I’m expending which makes it feel more taxing
  3. Passing the time – simply, it makes the time pass more quickly
  4. Keeping rhythm and pace – it’s this I want to discuss in more detail

The music best suited for running needs to be a fairly constant, driving mid-tempo. This is because I tend to subconsciously match my pace to the beat of the music. Too slow and the effect is lost, and I generally find slows me down overall. Too fast and I risk tiring myself out too quickly, or simply not being able to match the pace. So Cathedral’s Forest Equilibrium is out, as is Slayer’s Angel of Death. Also, a very changeable tempo renders the overall effect useless. Subtle tempo shifts across longer tracks, or between tracks are very welcome (especially if you’re doing aerobic/anaerobic alternation), but spazzy stuff like Grindcore or the constant ebb and flow of Opeth is simply not up to the job, no matter how much I like it at any other time.

The other attribute I find helps immeasurably is aggression. Yes I could stick on a dance mix and achieve roughly the same effect with regards to tempo, but nothing beats balls to the wall angst to get you pounding the pavement.

What I’ve discovered is punk/hardcore is great for running to, as well as standard old school heavy metal and some hard/classic rock. Avoid anything drone or extremely down tempo and most doom, stoner, death, black.

Here’s my playlist for a 25 – 30 minute power jog. I start off slightly down tempo to get warmed up, and slowly wind up – this is how I like to structure my run (I find it easier to push myself at the end when the endorphins are flowing). The idea is to match your footfall to the tempo of the track.

The moderate start

High on Fire – Fury Whip

Ghost of a Thousand – Bright Lights

The mid-paced midsection

The Dillinger Escape Plan – Milk Lizard

Refused – Summerholidays vs Punk Routine

The sprint to the finish

Carcass – Heartwork

Black Sabbath – Neon Knights

(Disclaimer: I’m neither a fitness expert nor a personal trainer. I accept no responsibility for any damage you may do to yourself while using this playlist during recreational exercise. If you’re not an experienced runner, you should probably try and find other tracks of a similar tempo to tracks 1 and 2)

If anyone else has any recommendations of songs to run to then please let me know!

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