MIDIGrid is a programmeable button matrix that allows the user to send MIDI Note on messages, Controller Code messages, Program Change messages, or NRPN messages via WIFi to the host computer, which must have the free DSMidiWifi app installed upon it. Virtually everything in MIDIGrid is user programmeable - pad colour, text size and shade, number of pads, pad function, all MIDI parameters. The possibilities of this app are virtually unlimited!