In 2014 Budweiser attempted to trademark the sound of a beer can opening.
The Tarzan Yell is trademarked (officially known as a Sensory Mark). “The mark is a yell consisting of a series of approximately ten sounds…” It takes over 200 words to technically describe how Tarzan yells.
In 1978, Apple Corps, founded by The Beatles, sued Apple Computer for trademark infringement. Apple Corps won, and Apple Computer agreed to not enter the music business as part of the settlement.