Here is a novelty tune that I wrote called "Banjolation". The title is a combination of the words "banjo" and "flatulation". It contains a few instances of synthesized errr...uhhh..."rude bodily sounds". If you are offended by things of this nature do not listen to this composition. It's all completely innocent but I wanted to pre-warn you.
I used the GPO tuba and trombones to simulate the errr...uhhh..."rude bodily sounds" and also for the melodic line about halfway through the piece.
Forgive me for I know not what I do.