She'll Be Coming Round the Mountain Slower Violin - Cello Duet Learn by watching the musicians or play in unison with the cello. Click for sheet music Cello only Play in unison with Susan.Remember to focus on one skill at a time! Violin only Play your cello &complete the duet with Ilana.Enjoy the thrill of sharing music! Faster Violin - Cello Duet Learn many skills playing togetherwhile having fun with pros. Cello only Play in unison with Susan.Notice your progress & smile! Violin only Play your cello &complete the duet with Ilana.Have fun playing together!