WOW! Jermaine took a bit of a risk, I would say, and had great success integrating technology with his choir students. Way to go, Jermaine!
Have you had your students collaborate digitally? Have you invited in a guest speaker via Skype? Have you used cool tools like http://fur.ly with your students?
Any new use of tech is a success, since we must start small then build on our successes. Come on in and tell us what has worked for you. Something didn't work? Tell us about that and ask for help. Maybe someone can steer you in a slightly different direction which might be more successful. There's a wealth of expertise here in this community!
Excellent use of QR codes in a normally "technology ignored subject." Have you considered using Socrative with your student's BYOD? Our choir teacher has been trying to see how well her students recognize standard music symbols, notes, and time signatures. I'd be interested in hearing other possible "fine arts" applications of technology.