Art: 7/10 - Not bad; needs work though.
Animation: 5/10 - The animation was okay, but needs some work.
Character: 6/10 - The characters aren't all that bad, even though they could have used some work.
Music: 7/10 - The songs are catchy and the music wasn't that bad.
Voice-acting: 9/10 - Done well. Best part of the show really.
Overall: 5/10 - This show is not too bad, but it's not that great. If you're a fan of music schools or blues and jazz music classes, then this show is for you, but if you're neither of these two people, then this show is not for you.