Play Instrument While Moving

Has anyone ever thought of making or requested a mod to be made for people who want to be able to play instruments while moving around? Whenever I play a bard, I'd like to be able to play my instrument whenever I please, without being limited to playing it while needing to stay perfectly still. I'd like the "Perform" skill to come along with an "End Perform" option, kinda like how the "Disguise Self" skill comes with an "End Disguise Self" option.