Musa is the Fairy of Music. She hails from Melody and currently acts as its Guardian Fairy. Musa is the daughter of Matlin and Ho-Boe, and is the girlfriend of Riven. She and her boyfriend, Riven, have a rocky and difficult but passionate relationship. Musa is a skilled singer and musician. She is one of the founding members of the Winx Club, being the fifth Winx girl introduced after Bloom, Stella, Flora and Tecna, and is an alumna/student of the Alfea College for Fairies.