The flowers used as decoration in ancient temples match cymatic patterns and served as notation for the temples' acoustic resonances.

The finding

What the evidence shows

I found no study or Egyptology source showing that temple flower decorations match cymatic (sound-vibration) patterns, or that they served as notation for temple frequencies. Egyptologists read temple flowers, mostly lotus and papyrus, as symbols of creation and rebirth, or as plain decoration. The well-known "Flower of Life" circles in the Osirion at Abydos look like later graffiti, possibly from the Christian era, not original temple design. Chladni sound patterns do produce symmetric shapes, so a loose visual resemblance is possible, but that is not evidence the builders meant them. A peer-reviewed comparison showing specific temple floral motifs reproduced by specific resonant frequencies, with evidence the builders intended it, would flip this verdict.