At that point, he might break into a be-bop-flavored sprint or leap to an upper octave to restate the tune with even more fervor.
The upper octave on the Uilleann chanter.
(the last three in the upper octave).
Some companies offer adjustment in the upper octaves only.
As mentioned, that corrects for enharmonicity, in which the ear hears upper octaves a bit flat unless "stretched."
He was more at home in the pristine heights of upper octave than at any other.
But in some recent song specially in catka the tune goes upto the upper octave.
Musically, it starts at the upper octave, flows downwards, and establishes a centre on d.
The piano sounded notably clear in the upper octaves, but also brittle and deficient in color.
The instruments in (iii) on the upper octave, cellos and 4 horns on the lower.