Trombone Duet Trombone - Level 5 - Digital Download SKU: A0.1473899 Composed by Ulises Odín Zamorano. Classical,Contemporary,Multicultural,Traditional,World. Score. 12 pages. Songburd Music #1051620. Published by Songburd Music (A0.1473899). El amor pudo haber sido suficiente (Trombone Duet) was commissioned by trombonist Juan Saldivar Jr. for the Between Borders project.  It premiered at the International Trombone Festival on July 13, 2022 at the University of Utah in Salt Lake City.