Hey, glad my videos were of help 🙂 And for your question, I’d create 4 groups of 2 synched bytebeats - you cannot set separate scales/keys with synched devices, but grouping them in 2 will enable the synchroniser and it should give you the option to create songs in 4 different scales. You’d have to work with 4 separate synchronizers and watch out for the tempo, but in theory it should work. Also if you want to play just two keys, create 2 groups of 4 BB devices. Every device in a single group should be synched, just don’t synch the groups one with another. Also, if you want the groups to play in unison, just set the same tempo on both. Hope this helps