21st Century (2013). For trombone (or euphonium) and bass trombone (or tuba) by Roger C. Vogel was premiered by Philippa Done, trombone, and Jonathan Warburton, bass trombone on March 1, 2013 at St. Martin's in the Bullring in Birmingham, England. This concert work is cast in 5 movements: Promenade, Organum, Song, Leapfrog, and Dance. The movements range in duration from 2'30" to 2'50" and may be played individually, or in any grouping.