Singing in Harmony

The Heart of Vocal Harmony: Emotional Expression in Group Singing (M - VERY GOOD

Singing Bowl: Exercises for Personal Harmony

Singing - Cantando De Colores: A Bilingual Book of Harmony (English - VERY GOOD

The Heart of Vocal Harmony: Emotional Expression in Group Singing

Singing in Harmony by MABELLE GLENN LORRAIN E. WATTERS LILLA BELLE PITTS

Singing Bowl: Exercises for Personal Harmony - Paperback By Anneke Huyser - GOOD