Nodame Cantabile Finale

Enjoy a romcom for an adult audience. Both animes feature an adult couple trying to make their mark in their industry (classical music and voice acting and marketting). Supporting each other, they go through a lot of personal and professional development. The interplay between these parts of their lives strengthen their relationships and makes for an interesting story. The element of "under the same roof" adds to the comedy as well as drama. Both have a happy ending. 

Both features Music and Romance with at least one bishounen in the series. Aimed towards females, even if the characters and settings are not similar, if you like Music and Romance, you'll like this series. Both also have cute little blonde fairies..accept in this Anime, the fairy is one of the main - this Anime has a bit of fiction in it. It also features Violin Music, as with Chiaki. 

Male and Female Lead. A bit more serious than Nodame Cantabile,but has its funny moments Music is pretty much a main part of the series.