And then there is a third group containing everything else.

For the Gen X/Y crowd this 3rd group is far from an afterthought — it contains some of our most striking examples. There are pieces in this category that have so strongly influenced us that there are over 800 different renditions for piano, and over 1000 for guitar just on youtube. These are pieces which we have listened to continuously for hours at a time, over the course of days, weeks, months, years.

And here is the most ubiquitous of the bunch:

Even a cursory glance through youtube gives you an idea of the influence of this particular piece. There are versions for orchestra (with over 280,000 views):

Beatboxing flute (over 10,000,000 views):

A version for bare hands:

Tesla coil:

As well as versions for RC car and bottles, ocarina, ruler, accordion, balalaika, theremin, pipe organ, 11-string bass, electric guitar, classical guitar, tuba, clarinet, wind trio, a capella, bassoon, trombone, viola, violin, piano, and many many more…

The influence and reach of that little theme is quite remarkable.

Researchers have unveiled the earliest known computer-generated music. It actually sounds like a halfway decent attempt at synthesized sound (at least by 1950′s standards) rather than the rather expected beeps and squawks.

The fall in the number of CD sales is not compensated for by an equally large rise in digital sales. Surprise surprise.

… and with that, I’m off to take a shower. Not only did I spend the entire day machining stuff and hence getting bits of aluminum and coatings of machining oil all over myself, but I also spent the last couple of hours playing with my friends’ fresh new Beagle puppy.  Washing is thus rather required.

It’s amazing because the only thing which actually hits your eardrum is a single wave. Each sound producing thing on the street sends a wave of sound outward, and they are all trying to enter your eardrum at the same time. This is a messy process. They don’t all take it in turns, or go in in different regions, instead they all pile up on top of each other into one big wave which is a combination of all of these individual sources.

It’s like if you have two people each holding and end of a really long piece of rope, long enough that they can’t see each other. They only way they can communicate is by sending waves down the rope by flicking it up and down. If at one end someone starts moving the rope up at down at a regular rate, so that nice clean waves get sent down the rope, the person at the end can easily see these waves and look up in their special wave-to-English dictionary what their friend is trying to communicate.

This is exactly the same situation as listening to a pure tone (say middle C) except that the rope is the air in between the speaker and your eardrum (which of course are the two people).

Real sounds are rarely pure tones. Instead of one of the friends with the rope wiggling it up and down at a regular rate, it’s like he moves it frantically all over the place, with little or no regularity. This is the wiggly, crazy looking waveform you tend to see on your screen if you record something on a computer.

When you have multiple sounds at once it’s even more complicated: it’s like having multiple people competing to move the rope up and down at the same time. Of course, at each point in time they will all disagree about where the rope should be, so they’ll end up taking an average of where they each want it. If two people think it needs to be up high, and one of them thinks it needs to be low, than it’ll end up somewhere in between (but somewhere toward the high end, as there are two who want it there).

In the same way, when you are on the street, or at a concert or in any situation in which there are lots of separate sounds, all of these waves are fighting to move your eardrum around. What ends up going into your ear at each instant is an average of all of these waves. Amazingly your brain is then able to separate all of these sounds apart from each other, even if you have never heard that type of sound before! You can isolate the people talking from the birds, or the piano form the orchestra. If you are at some funky concert with a bizarre instrument made from, I dunno, linen and pork-chops, chances are you can isolate that even though your brain doesn’t know a priori what waveforms from that instrument “look like”.

There are exceptions though. If sounds are similar enough it is hard to distinguish them without practice: for example, sometimes it’s almost impossible to hear which is the cello and which the violin in a string quartet, if they are playing the same notes. Your brain is naturally good at telling stuff apart, but you can train it to be even better with practice. I guess this is true for other senses too: foodies and wine-snobs (Winies? What’s the proper term for one of them? Oh yeah… oenophiles) practice to be able to distinguish finer graduations of taste than the built-in functionality affords.

One of the things I had trouble with when I started listening to classical music was that it all sounded the same. I found it really hard to distinguish the instruments in the orchestra, which may have been why I was so into piano concertos. Everyone can hear the piano. At some point I must have practiced enough that my brain could start to distinguish things, and suddenly it sounded a lot more like music.

One of the wonderful things about music is that we can switch between listening via concentrated focusing, and letting it all pour into our ears in one gloriously messy, arguing, intricate river of sound.

Instead, the music colonizing my player has been Mr Scruff, an old favorite:

He was one of the guys I listened primarily to before switching over to almost exclusively classical music. It’s nice to have a bit of a resurgence. The boundaries between musical styles are completely artificial anyway, and there is something constraining and unpleasant about claiming I feel like listening to classical music or non-classical music. It’s all highly-stylized waves of compressed air, in the end.

I’ll leave you with another summery piece of Mr. Scruff, with an actual video this time:

Mmm. Pie.

Technology years are kind of like dog years: when comparing historical documents they seem about ten times more out of date than the numerical gap would indicate.

1. The niceness of having a laptop loaded with music on-hand
2. The realization that 1 would be unecessary (or more convenient) given a year of technological advances (alright, I know this doesn’t make much sense when compactified into this subtle little description. What the muttering is hinting at is that I shouldn’t have had to copy everything over – it should all be streamable)
3. God, what was three?

So this post is more a motivational effort then anything else, sorry about the lack of content; ideally it’s an inroad to more, actually, interesting things. We shall see how that pans out…

It better bloody be okay!