Whether playing as part of a duo, trio or quartet, Aaron knows that there is no substitute for going out and paying one’s dues, and that accounts for his tremendous work ethic, one where he’s played five nights a week to audiences all over Europe, taught music and worked with some of the best musicians in London.

Moving to London at the age of 21, Short began to play anywhere he could, continually refining his songs. “When I first began songwriting, I wrote just to write,” he remembers. “B...