| Its musical range spans about four octaves, and the sound has some similarities to that of a Western violin. |
| Bees and butterflies can see ultraviolet rays, and bats and porpoises can hear sounds two octaves beyond our range. |
| The monks' chanting is heard as a deep growling sound, which is the result of producing three octaves simultaneously. |
| His scale organizes the notes into octaves, with sharps and flats in between. |
| He restates the theme in octaves and floats it away over his own restatement, like a ghost score. |
| All of sudden he does this incredible run where he goes up two octaves and back down in quadruple time. |
