Viola Solo - Level 1 - Digital Download SKU: A0.605670 By Christina Perri. By Barrett Yeretsian, Christina Perri, and Drew Lawrence. Arranged by Kevin Busse. Pop. Individual part. 2 pages. Kevin Busse #4302887. Published by Kevin Busse (A0.605670). This is an exact transcription of Jar Of Hearts in the easy key of C for Viola.