Tube trumpet

[3] As with the natural trumpet and bugle, the tube trumpet is a simple (valveless) brass instrument, and is therefore in principle limited to a single harmonic sequence, though by employing embouchure it can be made to produce a chromatic scale in the higher registers.

By using a three foot length of garden hose and taping on a plastic funnel the principles of sound vibration can be demonstrated to music students.

[1] Unlike any other brass instrument, the tube trumpet is flexible, allowing the bell to be swung around the player's head.

[2] Low Profile were a New Zealand alternative rock band of the 1980s who released two albums - Quiet Streets (1982) and Elephunkin' (1987), but are best remembered for their quirky single Elephunk In My Soup, which included the use of a hosepipe trumpet they termed an Elephunk.

A typical tube trumpet was made by Uncle Phil in the comic strip For Better or For Worse, which he termed a "hose-a-phonium".