Just a random character idea I had, and I thought I'd note it down before I forget.
Boss... Band?: The Metropolitan Brothers
The Metro Bros. are a band of 5 successful businessmen, maintaining a pretty popular chain of bars across Oratoria. Their father, Taupe Metropolitan, has recently fallen ill; and the heir to his legacy has yet to be determined. So there's more than a little bad blood between siblings, as they're all trying to prove to eachother who's the best buisnessman. They've all decided that entering the Wave Warrior market is a lucrative option, but they're all going about it in different ways...
Sangria Metropolitan
The oldest of the Metro Bros. He's decided to break into the Wave Warrior circuit by training to be one himself. If he can rise to the top, then the fame and fortune he'd aquire would cerainly sway his father! He's not too sure on what instrument would be best for him, though.
Cobalt Metropolitan
His deadly serious and cold attitude makes some of the other brothers a little apprehensive of him. His efficient and calculating nature has led him to become a Wave Warrior bounty hunter. By taking down some of the more infamous bad guys in Oratoria, the rewards generated would be substantial. Beneath his cool exterior, Cobalt hides a manic tenacity; and on more than one occasion, he's taken down a non-criminal Band with no mercy or remorse. People would try and correct him; but they've always been reluctant to for some reason...
Harlequin Metropolitan
He is, in a word, "Fabulous!". He has so much stylistic flair, it's rather overbearing. Ok, very overbearing. The upshot of this is he produces some amazing clothes that would surely give you a hefty boost in battle. He'd like nothing more than to sell his wears to someone who could beat down his brothers while wearing one. He'd fight them himself, but with the price he paid for his suit, there's no chance in hell he's getting it dirty.
Han Metropolitan
Out of all of them, Han seems to have the right idea. Instead of trying to capitalise on the music of others, Han is making his own sounds. He's opened a music store in a central location on the Digital side, offering remixes of popular riffs (ever wanted to use a riff, but it's not attuned to a Station you like, this guy might be able to accomodate your needs...), and a few of his own beats. He's at the mercy of Pirating, though. If he can't get a stable financial footing before all his riffs are pirated, he might go under...
Gamboge Metropolitan
The youngest of the Metro Bros. While originally rather babied by his older siblings, now there's an expensive legacy involved, Gamboge was unceremoniously dumped, and left to fend for himself. Previous attempts at entering the foray were swiftly blocked by his skilled superiors. If he has any hope of success; he's gonna need some help. Word is, he's a rather good Jazz musician.