tonality

noun (plural tonalities)

• 1the character of a piece of music as determined by the key in which it is played or the relations between the notes of a scale or key.
• the harmonic effect of being in a particular key:the first bar would seem set to create a tonality of C major
• the use of conventional keys and harmony as the basis of musical composition.

• 2the color scheme or range of tones used in a picture.