23.7. 1993 Vitoria-Gasteiz / Spain - World Federation of Music Therapy

simultaneously with any number of other sequences,
chords and notes and the entire resulting musical piece
stored as a new sequence in another grid box.
This allows complex timbral and temporal musical
structures to be added to the palette. Because the
player triggers these events and hears the result
immediately, there is constant aural feedback thus
making improvisation an integral part of the composition
and performance process.
The grid, in addition to being played by the mouse, can
be controlled by the process of "keyboard mapping".
Any grid box can be 'mapped' to a note on an external
electronic instrument. This concept opens up a huge
range of possibilities as each note played by the
performer can now explicitly control or trigger a chord,
or a sequence or even an entire composition without the
825
performer ever having to touch the computer.
The sensitivity of the mouse control can be adjusted for
the individual. This enables those with even the most
limited range of movement to operate the computer.
Music Therapists have to serve the needs of a wide
variety of human conditions and there are those who
are best served by the simplest means. Midigrid
incorporates a facility for making up individual grids
which opens up the possibility for original creative work.
At the simplest extreme a grid could consist of only one
tone, to be incorporated into a musical texture as and
when required.
The North Yorkshire Music Therapy Centre already