For 25 years, and with no sign of slowing, violinist Chris Murphy has made a living by writing, performing and recording original music. For Murphy, the path forward is charted by looking backward, to the troubadours and minstrels of ages past. Forget the exaggerated reports of the music industry’s demise. It’s only the record industry, a relative blip in the history of putting tones in sequence, that’s suffering. Music, and the opportunity to make a life’s work out of it, well, that’s not going anywhere.