And "Y" is for...Yodel
Yodeling is the rapid changing of high pitches and low pitches and came from European countries like Austria and Switzerland. The Sound of Music has a yodeling song in it as you would expect.
The cowboys could yodel as well. Roy Rogers and Gene Autry were known to yodel. There is no yodeling in the Cowboy Jack song, though.
The Lion King also contains a yodeling song. I'm pretty sure everyone has heard this one, but to tie the beginning of my abecedarium to the end, here is an a cappella version of the yodeling song, The Lion Sleeps Tonight performed by Straight With No Chaser:
One more day. Anyone want to make a guess what "Z" is for? See you tomorrow for the last day of the challenge!