12/8 is compound yet it treats it as simple
12/8 is the time signature I am writing my nocturne in. If I were writing with pencil and paper I wouldn't have to deal with this but I have basically 2 options here as far as the time signature and notation and 1 of them is technically correct but is time consuming and the other is wrong for the right hand.
Technically correct but time consuming option:
I could write it in 4/4 in the notation software and make each group of eighth notes a triplet and notated as such, then select all but 1 triplet and make it invisible and then type in sempre for the left hand.
Wrong but easier option:
I could write it in 12/8 and put in dotted quarters where I have 1 note in the right hand for every group of 3 in the left hand. But this looks wrong to me. After all a dotted quarter in 12/8 is really 4.5 eighth notes, not 3.
This would be way easier if musescore like automatically did it in compound meter for time signatures with 6 or more beats(5/4 I have seen represented as simple quintuple meter instead of 2/4 + 3/4 or vice versa) so it would have 4 quarter notes instead of 6 in 12/8.