90 is in no way intended as the exhaustive retrospective of the oeuvre of an important artist (this can, and should, be done in the coming years by someone more qualified than me.) The actual chronology of these pieces, and in some cases who might have collaborated with Achim on them, remain a mystery. But the historical context of this music is undeniably compelling—it doesn’t feel like hyperbole to suggest that these cascading, hypnotic cycles equal the best of contemporaries like Terry Riley, working half a world away on their own minimal masterpieces. For now, a celebration is sufficient—the portrait of an extraordinary life at 90, narrated in beautiful, intimate, innovative music.

A1. 322 40
A2. 221 37
A3. 217 09
A4. 54 30
A5. 443 09
A6. TB13 16 37

B1. TB6 35 49
B2. TB13 36 49
B3. 357 41
B4. TB36 2 14
B5. 3704 90
B6. TB34r 13 37
B7. TB6 25

C1. 332 05
C2. 222 13
C3. TB36 6 47
C4. TB36 9 18
C5. TB38 58 56
C6. TB38 149 43
C7. TB39 69 45
C8. TB41 35 58

D1. TB11 34 20
D2. TB11 29 15
D3. TB6 43 47
D4. TB4 8 57
D5. TB36 69 23
D6. TB6 101 30
D7. Moebi Speaks

E1. 774 02
E2. TB33 116
E3. TB11 144 24
E4. TB35 21 24

F1. 647 32
F2. 131 33
F3. 792 43
F4. TB10 76 16
F5. TB6 55 03
F6. 776 665 54
F7. TB41 38 28

G1. 633 09
G2. 384 57
G3. 1027 35
G4. 934 19
G5. 154 32
G6. Fostex 58

H1. 430 15
H2. 587 18
H3. 897 00
H4. 663 20