Viola Solo - Level 1 - Digital Download SKU: A0.603011 By Bruno Mars. By Bruno Mars, Charles Wilson, Devon Gallaspy, Jeff Bhasker, Lonnie Simmons, Mark Ronson, Nicholaus Williams, Philip Lawrence, Robert Wilson, Ronnie Wilson, and Rudolph Taylor. Arranged by Kevin Busse. Pop. Individual part. 2 pages. Kevin Busse #3602253. Published by Kevin Busse (A0.603011). This is a simple transcription of Uptown Funk in the easy key of C for Viola.