Vocaloid China Project Senden Animation

Both Marnie and China Project have plenty of gorgeous visual story telling. Although Marnie has dialogue, unlike China Project, both manage to convey a deep emotional message though their visuals. Both stories also have an other-worldly sense that makes them both uniquely beautiful.  

Anime with short episodes featuring animated singers with songs sung by an electronic voice. 

Both are about a group that wants to become famous in the music scene. Both are also set in a technologically advanced world with mixed sci-fi and fantasy elements as well. They also feature great upbeat music in each episode. Cute, lively, comical, sparkly, and motivational in some ways, watching these two will definitely leave a smile on your face :)