Instrumental Duet Instrumental Duet,Piano,Violin - Level 1 - Digital Download SKU: A0.859511 By Luis Fonsi and Demi Lovato. By Alejandro Rengifo, Andres Torres, Luis Fonsi, and Mauricio Rengifo. Arranged by Music-holley. Contemporary. Score and parts. 2 pages. Music-holley #3868671. Published by music-holley (A0.859511). Luis Fonsi & Demi Lovato - Échame la culpaEasy piano version, 2 pages, with chords.