Cello,Piano - Level 3 - Digital Download SKU: A0.1150385 By Marshmello & Bastille. By Dan Smith, Marshmello, and Steve Mac. Arranged by Thiago Marconato. Pop. Score and part. 3 pages. Thiago Marconato #750557. Published by Thiago Marconato (A0.1150385). Arrangement for cello and piano of Happier, recorded by Marshmello and Bastille, in the orifinal key (F major). The file contains full score and cello part.