What is Bard?

[Gobio]

The fundamental problem of bard is who (as in which person) exactly care about the singing?

You can do all the changes on the surface to fool the bard player that your character is singing, but at the end of the day, if it is still balanced to the point that only you the bard care about which song you are singing and nobody else... I'd say just forget it and go full magical archer.