Instrumental Duet Instrumental Duet,Trombone,Trumpet - Level 4 - Digital Download SKU: A0.715010 Composed by Gustav Holst. Arranged by Jeremy Corcoran. Film/TV,Romantic Period,Wedding,World. Score and parts. 4 pages. LPC Publishers #5372383. Published by LPC Publishers (A0.715010). From The Planets comes one of the most beautiful and lyrical melodies ever written.