interlocking patterns

A compositional device in which two or more voices share the same rhythmic material but are displaced against each other — each voice fills the rhythmic spaces left by the other, creating a dense, seamless texture from simple cells. Related to African percussion ensemble technique, West African kora duet practice, and Steve Reich's interlocking keyboard patterns. Central to Hallelujah Junction, where the two pianos constantly complete each other's phrases in tightly locked rhythmic grids.

Interlocking works only when both players are absolutely steady. The natural tendency is to listen to your partner and adjust — resist this. Each player must be self-sufficient in their own part; the interlocking then happens automatically. Think of it as two clocks running simultaneously rather than two musicians accompanying each other.