AND do consider some options to sequence sequences. IMO BossBow2, Switchblade, Verbos Sequence Selector and Befaco Muxlicer are all worth considering. Also running sequencing and/or CV through a sample@hold is an interesting technique. The general idea here is nesting control signals so you have source signals and reader/windows which pass a selection of the sources. That lets you get a lot of aural complexity from pretty simple underlying figures.