LEXIKON-SONATE, an infinite interactive realtime composition for
computer-controlled piano, was originally implemented as a computer
program (written in MAX) which used to run only on Apple Macintosh
computers:

    http://www.ping.at/users/essl/works/Lexikon-Sonate.html

Since recently, this piece is also available on the Web and you can
listen to its completely unforeseeable music online. Please point your
browser to:

    http://www.ping.at/users/essl/works/lexson-online.html

There are existing two different versions:

* an interactive, form-based CGI-script where you can combine the various
musical structure generators at will;

* a non-interactive Javascript implementation which will play a new
version every time you reload the page (be surprised!);

System Requirements:

A Web browser which is capable of playing different MIDI-files at
the same time; a Javascript-savy browser is obligatory for the
Javascript version.  Best results have been obtained with Netscape 3.0
(with installed LiveAudio-PlugIn) on an Apple Macintosh computer with
Quicktime 2.5.

Also visit the MindShipMind - an interactive multimedial Web Oracle at
    
    http://www.ping.at/users/essl/works/mindshipmind.html

Dr. Karlheinz Essl¶
SAMT - Studio for Advanced Music & Media Technology¶
Bruckner-Konservatorium Linz / Austria¶
www:   http://www.ping.at/users/essl/index.html

 [ Editor's note:
 [
 [ I found the computer-based version of "Sonata" quite intriguing.
 [ Semi-random music is generated in real time under the control of
 [ several user-selectable parameters,.  It's very pleasant random
 [ music, reminiscent of an enlightened wind-chime!
 [
 [ Robbie