Piano arrangements come in handy, but producing them in Biab is awkward, unless using one of the very few piano-only styles. For most arrangements, one has to find a style with piano, and then mute other instruments, or change instruments to piano, and then tweak the arrangement to make it playable.

It would be most helpful if more piano-only styles could be made available, or if a utility could be developed that would convert non-piano styles to piano-only.