Decibelle can refer to multiple artists. 1. Decibelle can refer to a female electronic/ambient artist who has made fanmusic for the show My Little Pony: Friendship is Magic. However, she now is branching off and making original music, inspired by nature and her life. 2. Decibelle can also refer to a female vocalist and musician who has also made fanmusic for the show FiM. However, she has done vocal collaborations with the artist Forest Rain.