yodel

nouns

a songlike cry in which the voice fluctuates rapidly between the normal voice and falsetto
yodel
is a type of (narrower)
a loud utterance; often in protest or opposition
"the speaker was interrupted by loud cries from the rear of the audience"
call, cry, outcry, shout, vociferation, yell

verbs

sing by changing register; sing by yodeling
"The Austrians were yodeling in the mountains"
descant, warble, yodel
is derived from
yodeller
is derived from
yodeling