Pianist Bruce Brubaker pairs 11 15th-century keyboard works—“music that is so ancient”, he says, “that it almost appears to be completely new”—with six versions of minimalist composer Terry Riley’s 1967 work Keyboard Study 2. The result is an ingenious marriage of old and new, where the boundaries of time dissolve. Recorded for the first time on an acoustic piano, Riley’s primitively structured improvisational study reaches back 500 years to greet the strange worlds of the meandering “Elas mon cuer” or the angular, unstable, dance-like “Tupes”.