Well into his third decade as a recording artist, Kevin Keller delves deeply into the space where acoustic instruments, electronics, and contemplation meet on ALTUS, his 16th album. Following a pair of albums that featured vocals more prominently than usual, Keller returns to the synthesizers that shaped his earliest work, but with a musical language transformed by everything he has explored since. The result is an album that synthesizes strands of his past with a new sense of sonic and spiritual discovery.