Lisztâ s Hosannah is really a chorale prelude based on the melody Heilig ist Gott der Vater. The chorale is also scored separately before the piece for which the Bass Trombone plays ad lib.Lisztâ s Hosannah is a beautiful piece for Bass Trombone and Organ providing a wonderful addition to the repertoire. The solo bass trombone part is also included on a separate insert.