Tin whistle all the holes closed, the whistle generates its lowest note, the tonic of a major scale. Successively opening holes from the bottom upward produces the rest of the notes of the scale in sequence: with the lowest hole open it generates the second, with the lowest two holes open, it produces the third and so on. With all six holes open, it produces the seventh. As with a number of woodwind instruments, the tin whistle's second and higher registers are achieved by increasing the air velocity into the ducted flue windway. On a transverse flute this is generally done by
Slide whistle in an imitation of a police siren. Dylan then incorporated the instrument into the song, which is credited as "police car." Roger Waters played two notes on the slide whistle in the song "Flaming", from Pink Floyd's debut album "The Piper at the Gates of Dawn". A more recent appearance of the slide whistle can be heard in the 1979 song "Get Up" by Vernon Burch. The slide whistle segment of this song was later sampled by Deee-Lite in their 1990 hit "Groove Is in the Heart". The Las Vegas-based band Holes and Hearts also used the slide whistle on