The musical octave.
The range or scope of something, especially of notes in a scale, or of a particular musical instrument.
A harmonious outpouring of sound.
A tonal grouping of the flue pipes of a pipe organ.
folk music
A song, in any folk style, originating among ordinary people, usually non-professional musicians, and handed down by oral tradition.
A song in the style of folk music, a modern genre of popular music.