Propagatia (1992), for Bass Trombone and Piano

Propagatia (propagations) derives most of its material from the opening gestures in the piano: melodic and harmonic structures are composed primarily of minor 2nds, perfect and augmented 4ths, and major 7ths; minor 3rds occur occasionally.   Melodies tend toward clearly upward, downward, or arched contours.  The "theme" is this overall consistency of the melodic content.  The succession of pedal points (E-F-B-G#-G-A-E-B/Bb-E) is designed to reflect the melodic elements and to suggest E as the tonal center. Commercially available here.