I think it is a neat and evocative name that fits the themes of the class. But sure, it could be called something else.If it doesn't have to be music, then why not just call it something else?
Which is? Bards are about music, and they're jacks of all trades. If they aren't that, they don't need to exist. If bard is just a primary arcane caster with vaguely defined fluff, how are they different form the sorcerer?I guess they just have a different image of what's important about being a bard.