Major 7th
11 semitones — bright tension that pulls toward the octave
Degree 7Solfège: tiNotation: M7
The major 7th, or leading tone, is an interval of 11 semitones — one semitone below the octave and the inversion of the minor 2nd. It is sharply dissonant against the root, pulling strongly upward to resolve; this pull is what makes the V–I cadence feel final. It is the defining note of the major 7th tetrad and appears in ionian and lydian.