The electronics will be played through a Max/MSP patch. This patch will also generate the click track, through output 3 and 4, for the percussionists. The Max/MSP patch enables the percussionist to start at any rehearsal mark for practice or rehearsal. Use the drop down menu in the Max/MSP patch to start four beats before each rehearsal mark. The click track on channels 3 and 4 are set by default to output through channels 1 and 2 in the I/O mapping for rehearsals. Email firstname.lastname@example.org for the Max/MSP patch.