Mauimacman

I could swear I remember there is a way to play all the MIDI files on an SD Card sequentially but don't recall how? Maybe I'm thinking of a different keyboard? Anyone know? I know you can press the PLAY/STOP & PART/SELECT BUTTONS together for a playback of a sequence of demos** I thought there was also a way to get that to happen with the midi contents of the external SD Card? TIA