It is easy to tell that Hiromi Uehara is a hypersensitive pianist, aware of everything around her as she performs. During one concert, a cell phone rang, and she quickly played a chord based on the ring tone to smooth over the interruption — and lessen the embarrassment for the offender. What sparks her passionate musical style, however, is something only she can sense.

"I definitely see a lot of fiery red, that's for sure," the 28-year-old, known for her fast-paced, nearly frantic playing, says with a laugh. "It's just my personality. When I'm really going for it, then I see that type of color."

Contrary to the way she plays, Uehara away from the keyboard seems reserved, relaxed and cheerful. She sits up straight in a green dress on a red sofa in a waiting room at the Yamaha Music Foundation in Meguro Ward, Tokyo, where she started piano lessons at age 6.