I can't remeber this movie please help

It was a boy who was a d-jay and he mixed music, but then he was send my his mom, when she descoverd that he use drugs, in a military village, I think it was a veteran one, and at the school he went there he starts to mix music for some girls who needs a music for their music festival or whatever it was that

“Strings” (2015), also known as “Bravetown”?