SquareZ
You've got to sing like you don't need the money,
Love like you'll never get hurt.
You've got to dance like no one is watching,
It's gotta come from the heart, if you want it to work.
--Susannah Clark
Calling Ideas for April 11, 2012

This is:

Bob Dylan's professional singing debut
Bob Dylan sang "Blowin' in the Wind" in Greenwich Village.

There's a square dance version of "Blowing in the Wind"...today's a good day to break it out.
Top Songs
1950: Music, Music, Music - Teresa Brewer
1968: (Sittin' on the) Dock of the Bay - Otis Redding
1977: Dancing Queen - Abba

These are songs that I know have square dance versions.
Joel Grey's Birthday
Joel Grey is well-known for his performance as the master of ceremonies in Cabaret, both on Broadway and in the movie version.

Can we say Cabaret?
Barbershop Quartet Day
In 1938, The Society for the Preservation and Encouragement of Barbershop Quartet Singing in America was formed in Tulsa, Oklahoma.

I don't have any records that I've identified as related to barbershop-style, but I'll bet they're out there.
First cigarette taxes imposed
Iowa was the first state to tax cigarettes.

I've been doing "Smoke Smoke (that Cigarette)" recently, and getting a good response.

April is:

Pets Are Wonderful Month
Find those animal records.
International Guitar Month
Johnny B. Goode
Keep America Beautiful Month
National Humor Month
Listening Awareness Month
Perfect for square dancing; one could do lots of tricky things to see if the dancers are listening to the caller.
National Anxiety Month
National Food Month
Prevention of Cruelty to Animals Month
Alcohol Awareness Month
Drinking songs, anyone?
National Read a Road Map Week
Maybe "road" songs: On the Road Again, Country Roads