I like your idea of 2 rows per note. left row 1/4 note, right row 1/3 note. but make the play channel between them, then make just one offset pin design that looks like you attached L on top 7, so that the standing pin is always facing center, betw Location: Status: Busy
(B1:0 - B2:0 - B3:0 - B4:0 - B5:0 - B6:0 - B7:0 - B8:0)