midi.onControlChange = function(port, data, control, value) {
if (control > 7 && control < 16) return; /* range between sliders and pots */
if (control > 23) return; /* after pots */
midi.onControlChange = function(port, data, control, value) {
if (control > 7 && control < 16) return; /* range between sliders and pots */
if (control > 23) return; /* after pots */