F0 43 10 4C 08 cc 0D vv ¨C where cc is channel (10-17), but I wasn't sure about the value. Might be that byte 0D controls not only muting, but mute/solo status, and high nibble "D" in the next byte means "mute". But "value 64" is 40 in hex, so wouldn't fit after D. I tested 00, 01, D0, D1, 3F, 40, 7F and none of them works. Not sure what I'm doing wrong.