Answer:
Trombone/BC Euphonium
Major scale
(Going up the scale) (Going back down) (Arpeggio)
Db, Eb, F, Gb, Ab, Bb, C, Db, C, Bb, Ab, Gb, F, Eb, Db, F, Ab, Db, C, Ab, Gb, Eb
5 3 1 5 3 1 3 2 3 1 3 5 1 3 5 1 3 5 3 3 5 3
The first note (Db) is a half note as is the second Db in the scale.
4/4 |Db, Eb, F,|Gb, Ab, Bb, C,| Db, C, Bb,| Ab, Gb, F, Eb,|Db, F, Ab, Db,| C, Ab, Gb, Eb|