From the streets to the stage

Violinist Geoffrey Castle used to play violin, albeit amplified, on the streets of New York. I don't know if he had a permit, because police generally are quick to shut down anyone playing with an amp.
Anyway, he's now made the leap to the stage. I've never heard him, but according to this advance article, he uses a loop sampler, which is used to record a short line of music and then repeats. The musician uses the loops to build layers. Sometimes, loops can result in self-indulgent, self-absorbed ventures for musicians. I hope Geoffrey avoids that; it appears that he actually plays melodies, which helps.