Aaron Krister Johnson is the founder of Untwelve and a virtuoso pianist. I was honored to have Aaron perform my piece
“Prelude for Prelude for Centaur Tuned Piano”
at an intimate Untwelve gathering last year on his piano which is tuned to Kraig Grady’s Centaur Just Intonation tuning. Aaron presents two different interpretations of the score which can be found below.