Thu May 27 20:02:36 PDT 1999

Measurements of the piano
==========================

   each key of the piano is remembered by the computer for 5 seconds
   or up to 60 seconds programmable with the computer keyboard keys
   '[' and ']' (brackets).

   The computer also tracks the average duration of the notes from the
   last 15 seconds.  

   The computer trys to avoid the pianist's hands by breaking the 
   piano into three registers: if the pianist is playing in any of 
   those three registers, then the computer will not play in those
   registers.

computer keyboard commands:
       n = display piano's history input pitch set
       m = display piano's currently on pitch set
       d = display baton's output notes
       c = display baton's control variables
       r = display piano's register tracking variables
       v = display active voice count of baton's notes
   space = activate/deactivate program
       z = forget the current notes from the piano
       [ = shorten note memory by 1 second
       ] = length note memory by 1 second


Stick 1:
========

   x-axis: DENSITY
      x(0) = 0 voices  ... x(127) = 6 voices
      control how many voices are playing at one time

   y-axis: REGISTER
      y(0) = low ... y(127) = high
      choose a register in which the pianist is not playing
      any notes.  Base the choice on the y-axis value, preferring
      low registers if y < 64 and high registers if y > 64

   z-axis: CONSONANCE
      z(127) = consonant ... z(50) = dissonant
      0   7   5   4   9   8   3   10   2   11   1   6 
      P1  P5  P4  M3  M6  m6  m3  m7   M2  M7   m2  A4


Stick 2:
========

   x-axis: VELOCITY
      x(0) = softer ... x(64) = same ... x(127) = louder

   y-axis: ARTICULATION
      y(0) = shorter ... y(64) = same ... y(127) = longer
      Computer keeps track of the average duration over
      the past 15 seconds.

   z-axis: RHYTHM
      z(127) = shorter ... z(50) = longer
      Computer measures the average duration of each piano note
      and then uses the z-axis value to generate the rhythm 
      of the computer's output notes.