Page  166 ï~~AUTO AN ALGORITHMIC REAL S IMPROVISATION Clarence Barlow Merheimer Strasse 214 5000 Koeln 60 West Germany AUTOBUSK composes in real-time accc and commands, outputting a maximum (sound) devices or to disk in Clarlow's to his MIDIDESK (MIDI Desktop scol convertible into standard MIDI file for are ASCII-keyboard, mouse, a MIDI de keyboards) or a file in.PRM format (sit r - - - - - - - - ' - - - r -1 -r'--= ' ---- - - - 1. F

Page  167 ï~~Two peripheral programme packages pre-processors for preparation of scale and a network of parameter process.PRM score files. PREPROC: Containing special algorith quantitatively defined scales and met JUSTLIST Given a set of prime num powers, a list of intervals within a generated in terms of number ratic size and indigestibility of the numc in a file called JUSTTAB. The tet have the meanings given to them Algorithmic Justification Of Logar described elsewhere; for instance, I indigestibilities 4.7, 22.2, 11.3, 9.1, 4.0, of e.g. perfect fourth [3:4], augmen [2:3] are 21.43%, 5.97% and 27.27%. HRM (for Harmonic Rationalizatiot 6 \ 1 r 1 " A

Page  168 ï~~It was found that by transposing th and by applying various harmonicil rationalizations of varying specific h that the miminum harmonicity constr For instance, by keeping the scale harmonicity of 4%. 2 candidates and 25 unusable tuning 1:2 3:5 1:2 2:3 1:1 8:9 harmonicitv) resulted. A tolerance as in1 1:2 1:2 1:2 1:1 1:1 1:2 1:2 1:2 1:2 1:8 no tuplets at all! But by setting the the scale by 250 cents to 905 661 787 the result was 2:3 2:3 2:3 2:3 1:1 1:1 harmonicity), very close the in constraints are found, it is possible t" durations. so as to render them pl IDP (for Indispensibility Determinatic importance of the individual pulses o cation scheme: for instance a 12/10 n successive subdivision of a bar into. M'Pi. A A/ M! / / I 1 0 0 %1% Ta a A Ma 41.') All I- I