| | Sliding Glass (Site not responding. Last check: 2007-11-06) |
 | | The slide is pressed against the strings (lightly, so as not to touch the strings to the fret board), producing a sustained tone which can be continuously varied by moving the slide across the neck. |
 | | A slide whistle (variously known as a swanee whistle, piston flute or less commonly jazz flute) is a wind instrument consisting of a fipple like a recorder's and a tube with a piston in it. |
 | | The slide whistle is most commonly used as a sound effect (such as in the sound tracks of animated cartoons, when a glissando can suggest something rapidly ascending or falling), but it is also possible to play melodies on the slide whistle. |
| www.blownspeakers.com /pages3/82/sliding-glass.html (1529 words) |