B-Flat Trumpet Solo - Level 1 - Digital Download SKU: A0.1251765 Composed by Erik Nielsen. 21st Century,Children,Classical,Contemporary,Instructional. Individual part. 7 pages. Middle Branch Music #845978. Published by Middle Branch Music (A0.1251765). Slidin' is a set of 10 short pieces with evocative titles and different moods for beginning Bb trumpet or baritone (treble clef). It is suitable for upper elementary or middle school players and may be considered as grade 1 or 2 in difficulty.