Craig Smith said (050107 MMDigest):


>> I think it would be a very worthwhile effort to make a program that
>> would display both the notes and the music graphically on something
>> like a laptop screen.  (By the way, if I were doing it, I would have
>> the notes scroll from bottom to top so that the words read top to
>> bottom instead of the awkward up-reading text used on a piano roll.
>> I would _not_ have the words scroll across the bottom of a vertical
>> moving roll either.)


Rex Lawson's Apple II program, a descendant of the QRS roll composing
utility, has MIDI keyboard as well as computer keyboard input and
displays the music as a conventional piano roll.  For the former, he
uses a Clavinova on permanent loan from me and as the piece is played,
the "roll" proceeds downwards.  He did some work towards displaying
the note velocities (strengths) along the edge of the "roll" but there
is no fixed correlation between MIDI note velocity and Duo-Art or
Ampico power since that depends on the type of instrument being played
and the whim of the engineer/musician.

What Rex would like to do in the fullness of time is to replicate
Pianola controls so that any Lawson roll file can be played back on
a cyberspace Steinway with the familiar Aeolian Co levers.  But at
present he is concentrating on getting the late Harry Medcraft's roll
perforator converted to computer input.

Dan Wilson, London