noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   Any set of four different pitch classes.
2. 2
   A series of four sounds, forming a scale of two-and-a-half tones.

Etymology

From tetra- + chord.

Related phrases

pitch class

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.