Brass Ensemble Trombone - Level 5 - Digital Download SKU: A0.811010 Composed by Gustav Holst. Arranged by Randall Malmstrom. 20th Century,Classical,Contemporary,Romantic Period. Score and parts. 64 pages. Gordon Cherry #4727335. Published by Gordon Cherry (A0.811010). Randy Malmstrom continues with another great arrangement from Holst's Planets Suite with the movement of Uranus The Magician for 8-part Trombone Ensemble. This music is appropriate for advanced performers and is about 4 minutes in length.