Whispering-gallery wave Whispering-gallery wave Whispering-gallery waves, or whispering-gallery modes, are a type of wave that can travel around a concave surface. Originally discovered for sound waves in the whispering gallery of St Paul’s Cathedral, they can exist for light and for other waves, with important applications in nondestructive testing, lasing, cooling and sensing, as well as in astronomy. Whispering-gallery waves were first explained for the case of St Paul's Cathedral circa 1878 by Lord Rayleigh, who revised a previous misconception that whispers could be heard across the dome but not at any intermediate position. He explained the phenomenon of travelling whispers with
Whispering (song) practice in jazz, Diz front-ran the static V chords with ii chords (a "static chord" is a chord that doesn't change), setting up a series of ii–V progressions, which creates more structure for improvising. The ii chord has similar properties to a iv chord (as in the iv–V progression of church harmony). Because "Groovin' High" was a contrafact, performers, publishers, and record companies did not have to pay royalties to the original composers. Moreover, the contrafacted rendition followed a unified bebop convention — a series of ii–V chord changes with a ii–V–I turnaround — for jazz artists. Whispering (song) "Whispering"