This interval separates the highest two notes in Wagner’s “Tristan chord.” In just intonation, this interval corresponds to a pitch ratio of 4:3 (“four to three”). Alto flutes are pitched this interval (-5[1])below concert pitch. This is the interval between the two chords in a plagal cadence. The first two notes of “Here Comes (10[1])the Bride” correspond to this musical interval. An augmented form of this interval is known as a tritone. Apart from the unison, this is the smallest musical interval that is perfect. This interval, which is made up of five semitones, separates the subdominant and the tonic notes in a scale. For 10 points, what interval is created by moving from C up to F? ■END■