Moiré patterns meet halftone dots meet cross stitching.

Halftone is a term that can refer to both a technology used in image processing and as the synonym for semitone in music. A jazz musician Oliver Nelson released the album The Blues and the Abstract Truth in 1961. It is considered one of the most significant records of its time. In addition, he wrote Patterns for Improvisation, a hugely popular jazz patterns book. The Moiré pattern design is on the book's cover.

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