Akademik

gapped scale
noun
a musical scale with fewer than seven notes
Hypernyms: ↑scale, ↑musical scale
Hyponyms: ↑pentatonic scale, ↑pentatone

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noun
Etymology: gapped past participle of gap (II)
: an incomplete musical scale; specifically : a scale established or patterned on the omission of certain notes or tones from a complete tonal series

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gapped scale «gapt»,
a musical scale derived from a more complete system of tones by the omission of some of the tones. The pentatonic is a gapped scale derived from the diatonic scale.

Useful english dictionary. 2012.