What is a third step in music?

A third step in music refers to the interval between two notes where one note is two scale degrees away from the other. For example, in a C major scale, the interval from C to E is a major third, while the interval from C to E♭ is a minor third. This interval is foundational in creating chords and harmonies, as it defines the quality of triads, such as major and minor chords. The third is crucial in Music Theory for understanding scales, chord progressions, and harmony.