-The 1 byte note coulmn could contain pointers to predefined or instrument-related arpeggio-chords in tables...the chords could be catched easily into chord-tables by pressing&holding note-keys in the desired arp-order... (Note byte: value $01-$60-8octaveX12notes, $60-$7c-chords, 00-NOP, $7D-gateon. $7e-gateoff, 7f/ff-signs pattern's end, MSB ($80) bit signs tied note&instrument column's existance).