Definition
"Diatonic" describes music that is based on a major or minor scale, consisting of seven notes within an octave. It refers to the common scales and harmonies familiar to most listeners. Think of simple melodies or pop songs that sound pleasing and predictable. Diatonic music follows established rules of harmony and melody. It contrasts with chromatic or atonal music, which uses more complex or dissonant sounds. Diatonic scales provide a framework for creating harmonious and accessible musical compositions. It's the foundation for much of Western music.