Editing Ninth (section)

==Major ninth==
{{Unreferenced section|date=March 2007}}
A '''major ninth''' is a compound musical interval spanning 14 [[semitone]]s, or an octave plus 2 semitones. 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 instrument]]s sound a major ninth lower than written.
These include the [[tenor saxophone]], the [[bass clarinet]], the [[baritone horn|baritone]]/[[euphonium]] when written in [[treble clef]], and the [[trombone]] when written in treble clef ([[Brass band (British style)|British brass band]] music).

When baritone/euphonium or trombone parts are written in [[bass clef]] or [[tenor clef]] they sound as written.