Ninth (interval)

A major ninth is a compound musical interval spanning 14 semitones, or an octave plus 2 semitones. For instance, the interval between C4 and D5 (in scientific pitch notation) is a major ninth. : { \override Score.TimeSignature • 'stencil = ##f \relative c' { \time 4/4 \set Score.tempoHideNote = ##t \tempo 1 = 20 1 } } If transposed into a single octave, it becomes a major second or minor seventh. The major ninth is somewhat dissonant in sound. Transposition Some common transposing instruments sound a major ninth lower than written. These include the tenor saxophone, the bass clarinet, the baritone/euphonium when written in treble clef, and the trombone when written in treble clef (British brass band music). When baritone/euphonium or trombone parts are written in bass clef or tenor clef they sound as written. ==Minor ninth==

A minor ninth (m9 or -9) is a compound musical interval spanning 13 semitones, or 1 semitone above an octave (thus it is enharmonically equivalent to an augmented octave). For instance, the interval between C4 and D5 (in scientific pitch notation) is a minor ninth. : { \override Score.TimeSignature • 'stencil = ##f \relative c' { \time 4/4 \set Score.tempoHideNote = ##t \tempo 1 = 60 1 } } If transposed into a single octave, it becomes a minor second or major seventh. The minor ninth is rather dissonant in sound, and in European classical music, often appears as a suspension. The fourth movement (an intermezzo) of Robert Schumann's Faschingsschwank aus Wien is constructed to feature prominent notes of the melody a minor ninth above the accompaniment: Béla Bartók wrote a study in minor ninths for piano. Several of Igor Stravinsky's works open with a striking gesture that includes the interval of a minor 9th, either as a chord, as in Les noces and Threni, or as an upward melodic leap, as a in Capriccio for Piano and Orchestra, Symphony in Three Movements, and Movements for Piano and Orchestra. ==Augmented ninth==

An augmented ninth is a compound musical interval spanning 15 semitones, or 3 semitones above an octave. For instance, the interval between C4 and D5 (in scientific pitch notation) is a major ninth. : { \override Score.TimeSignature • 'stencil = ##f \relative c' { \time 4/4 \set Score.tempoHideNote = ##t \tempo 1 = 60 1 } } Enharmonically equivalent to a compound minor third, if transposed into a single octave, it becomes a minor third or major sixth. ==See also==