Woodwind Ensemble,Woodwind Quintet Bassoon,Clarinet,Flute,Horn,Oboe - Level 3 - Digital Download SKU: A0.1334962 Composed by Gustav Holst. Arranged by Ray Thompson. 20th Century,Christmas. 17 pages. RayThompsonMusic #920843. Published by RayThompsonMusic (A0.1334962). This Have I Done for My True Love, or Tomorrow Shall Be My Dancing Day, Op. 34, no. 1 [H128],is a motet or part song composed in 1916 by Gustav Holst.The words are taken from an ancient carol, and the music is so strongly influenced by English folk music that it has sometimes been mistaken for a traditional folk song itself. It has often been described as a small masterpiece.Arranged wind quintet.