Fractal Music

Back before the dawn of time (ie, in the late 1980s), I created this ancient and venerable MIDI software for the Atari ST with the help of my friend Laurence Glazier, operating jointly as Datamusic. A long time ago now, Laurence and I agreed to release the program into the public domain: yes, folks, it’s free!

Main screen of Fractal Music on first loading

Fractal Music’s main screen on first loading

Quaint though it may seem now in many ways, Fractal Music does still work, and produces results that are still, as far as I know, unique. It was even working in the NoSTalgia Atari ST emulator under Mac OS X up to version 10.6 (Snow Leopard), but unfortunately, NoSTalgia is a PowerPC application and stopped running when Mac OS X became Intel only. Fractal Music sort of worked under Lion in another emulator called Hatari, but that failed in later versions of Lion and to the best of my knowledge that’s still the case in 10.10 Yosemite (which my computer runs as I write, so I can’t report on later OS versions). If anyone knows of a reliable Atari ST emulator that runs, with MIDI output, on Intel Macs, I’d be interested.

I can, however, happily report that Fractal Music seems to run pretty well in Steem for Windows — and even better, this works in Parallels Desktop on my Mac, running Windows 7. An emulator in an emulator! That was a major surprise, and it means all is not lost for us Mac users.
UPDATE: That was in Parallels Desktop 6 running in Mac OS X 10.7 Lion, but to my complete amazement it still works in Parallels Desktop 10 running in Mac OS X 10.10 Yosemite (still Windows 7).
And incidentally, the window that represents the entire screen of the Atari ST in hi-res (as shown above) looks unbelievably tiny on my 27" iMac!

In any case, if you have the necessary technology to run it, the full product is available for free download, as is the manual.

For years Fractal Music was featured very favourably on Tim Conrardy’s Atari MIDI World site, but sadly, Tim died in 2009 and the site is no more, so many thanks, Tim, and rest in peace.

I’ve just learned (2017) from Laurence that a very nice review by Ian Waugh, in the October 1991 edition of Music Technology magazine, is available online here. I have one or two very minor quibbles with some of his terminology, and you can certainly ignore the parts about licensing and that tamper-proof file (third paragraph) and pricing (at the end). And those contact details are, as the little popup suggests, very distinctly ‘old and out-dated’! But otherwise it’s very thorough and gives a good idea of what Fractal Music is all about.

Here’s an edited version of the original sales blurb:

Fractal Music is a powerful real-time music generator and processor

A very approximate 2D graphical representation of one possible output

A very approximate 2D graphical representation of one possible output

As a music generator, Fractal Music:

The program uses a cyclical, iterative fractal process — a three dimensional extension of Clifford Pickover’s ‘fractal popcorn’ (although the visual result is very different as you can see here) — to generate monophonic lines of music. The three dimensions represent the pitch, placement in time and key velocity of each new note. The result is real music with melodic, rhythmic and dynamic interest — even including rests! Recognisable near-repetitions of musical shapes occur frequently, lending extra validity to the musical output. It is possible for the user, by judicious setting of parameters (and with the editing features described below), to produce subtle variations on the same music in a number of different ways.

As a music processor, Fractal Music offers extraordinary music editing facilities (and some standard ones), including:

Setting an absolute quantize value

Setting an absolute quantize value

Setting the angle of reflection

Setting the angle of reflection: the box represents the duration and pitch range of the music; the + is the geometric origin

Some of these techniques (transposition, stretching, squashing, inversion, retrograde) have been familiar to composers for centuries. Fractal Music does them automatically. Others (reflection, rotation) are logical extensions of these concepts, but extremely difficult to do manually, involving tedious and repetitive maths.

Other features include: