Good.
I would like to see bards become song based rather than instrument based. A zero creativity approach could be based on the way spellbooks work currently.
Make the instruments equipable with appropriate mods. Carry a songbook with various tunes.
Each tune has a different melody, or a melody / instrument combo. Each tune has a variation on the classic barding effects, modified by base skill in those bard skills.
In addition peace, provo, and disco effects tunes could deal direct damage, area damage, paralyze, buffs/debuffs, etc.
Maximal effects would require 4 x 120 bard skills, minimizing gimpability.
Oh well.