String Quartet String Quartet - Level 2 - Digital Download SKU: A0.767783 By Marshmello. By Dan Smith, Marshmello, and Steve Mac. Arranged by Ellen Harle. Pop. Score and parts. 16 pages. Fireworks Music #4608387. Published by Fireworks Music (A0.767783). This arrangement in F major features moving parts for all instruments. It is useful for school ensembles, as there is no position work. Violin III (Viola part in treble clef) is also included.