Hearing his brother play his piece(the first time he had done so since what, Fourth Year?), Riley shivered discreetly, the beauty of it making his eyes tear up. He looked away when Ryan put the cover back on the keys and he closed his eyes, unwilling to show how touched he was that his twin had so willingly played his writings. They worked fine apart, but they worked better together. Ryan had a way of bringing Riley's writings to their best, that he couldn't even compete with.
Which was why he never played piano even though he knew enough to write for the instrument. It was the way he chose to respect his brother's musical talent. Piano playing was his domain.
"It's been, um.. on and off actually." Usually what he wrote in the summer or on Holidays while Ryan was playing in the background, inspiring him.