Violin Play-Along Volume 51. The Violin Play-Along series will help you play your favorite songs quickly and easily, with incredible backing tracks to help you sound like a bona fide pro! Just follow the written music, stream or download the online audio to hear how the violin should sound, and then play along with the separate backing tracks. The online audio files include PLAYBACK , a multi-functional audio player that allows you to slow down audio without changing pitch, set loop points, change keys, pan left or right, and more. This volume includes 8 of your favorite contemporary songs: Feel It Still (Portugal. The Man.) · Happy Now (Zedd and Elley Duhe) · Havana (Camila Cabello