Bells Solo,Glockenspiel - Level 1 - Digital Download SKU: A0.998846 Composed by Robert A. Howard. Children,Contemporary,Instructional,Multicultural,Standards,World. Individual part. 2 pages. Robert A. Howard #6198261. Published by Robert A. Howard (A0.998846). This short tuned percussion piece was designed for use in the high school music classroom (ages 11-14). The title, Tresillo, refers to the repeated use of the 3+3+2 quaver pattern, within a 4/4 time signature. This syncopated rhythm is a strong musical feature of many countries, especially from South America, the Caribbean, and Africa. The piece was crafted within a ternary form, featuring simple triadic ascending and descending sequences. It can be performed on classroom glockenspiels, xylophones, chime bars, or other similar instruments.