"What is that instrument he's playing?" That's usually one of the first reactions to Nathan Miller. For the record it's an acoustic lap slide guitar. Its roots are from the 20s and 30s when Hawaiian music was all the rage. Today Nathan uses it for everything but Hawaiian music (maybe one day though). One listen and you wont care what instrument Nathan Miller is playing, but you will want more. Nathan Miller began playing guitar after hearing Jimi Hendrix’s “Purple Haze” on a record his mother bought him when he was 12.