I'd rather stay with having 1 song per bard, since it means we have minimal downtime dedicated to buffing before we return to DD'ing. It would interrupt the flow too much. I dunno why people want to carry a ton of instruments either, that was easily the absolute worst thing about BRD in FF11. We will probably get BRD-specific bows/bowharps that affect songs.

I didn't know about Resonance working with songs, that will be extremely useful.

Something else some of you might not know: Battle Voice works with Swiftsong and makes your party move REALLY quickly, I think its even faster than Fists of Wind with the MNK AF boots. Should be useful for getting back to where you were in a dungeon if you wipe.