Please excuse the slightly misleading terminology in the title of this post, but I am looking for a straightforward method to experiment with different chord rhythms and patterns for the left hand in a keyboard style arrangement.
As an example, I have this simple arrangement:
(setf lh-chords
'( #|1|# (c2 c3e3g3 c3e3g3 c3e3g3)
#|2|# (f2 c3f3a3 c3f3a3 c3f3a3)
#|3|# (e2 e3g3c4 e3g3c4 e3g3c4)
#|4|# (gs2 e3b3 e3b3 e3b3 g2 d3g3b3 d3g3b3 d3g3b3)
))
(setf lh-lengths
'(
#|1|# (e e e e e e e e) ;i
#|2|# (e e e e e e e e) ;i