Divine Comedy, an animation of heavyweight music, has two seasons. Music is definitely divine comedy, although it is not rock, but I strongly recommend it! Just listening to that kind of music is enjoyment.

"Golden strings"-you can tell from the name. Although the music in it is not rock and roll as LZ said, it is nice.

The forest of piano-the name speaks for itself = |||, with healing effect hoho~

Nana-this is very famous, so I won't introduce it, just girls+rock.

Baker-Inspirational Music Animation

"No Dame Cantable"-There are animations and TV dramas, which are famous and tend to be relaxed and funny.

Voice of the air-it's the same style as a girl with a very light voice, and you will associate it with a very light voice when you look at the characters inside.

The princes of laurel-hmm ||| If you want to see it, listen to them sing.

PS: "Nana fully meets the requirements of LZ, but. . . LZ should be mentally prepared when watching it, because it is a deep animation after all, not as easy as a girl dancing lightly. If you want to find an easy-to-watch animation, you can watch Golden String, Voice of the Air, Divine Comedy, Piano Forest and nodame cantabile!

Okay, I'm done.