Nach - After (as "in the manner of"); behind.

Nachtmusik - "Night music." A serenade.

Natural - A musical symbol which cancels a previous sharp or flat.

Neumatic - One style of chant in which two to four pitches occur on one syllable; in contrast to melismatic and syllabic.

Non - No; not.

Nonharmonic tones - A designation for tones outside the harmonic structure of the chord. Two frequently used examples are the passing tone and the appoggiatura.

Non troppo - Not too much. Used with other terms, e.g. non troppo allegro, not too fast.

Notation - A term for a system of expressing musical sounds through the use of written characters, called notes.

Note - The symbol which, when placed on a staff with a particular clef sign, indicates pitch.

Nuance - Subtle variations in tempo, phrasing, dynamics, etc., to enhance a musical performance.