Happy Christmas No sheet music files available for this piece. Composer: Arr. Luís Cardoso Parts: Choir SATB, Piano, Viola, Violin1, Violin2, Violoncello Difficulty: Medium Genre: Arrangement, Choir, Choir & Ensemble, Christmas, Light Music, Strings, Voice & Ensemble Duration: Year of composition/arrangement: 2007 Availability: No sheet music files available for this piece.