[“Ultramodern Piano Jazz taught by mail. Note or ear. Easy rapid lessons for adult beginners. Also Self-instruction system for advanced pianists. Learn 358 Bass Styles, 976 Jazz Breaks, hundreds of Trick Endings, Hot Rhythms, Sock, Stomp and Dirt Effects; Symphonic and Wicked Harmony in latest Radio and Record Style. Write for Free Booklet.” Popular Mechanics, June 1934.]
I like the idea of learning by ear by mail. I found this ad while collecting “Learn at home” ads to go with John Steinbeck’s The Grapes of Wrath (in which Connie Rivers plans to study electricity or radios through a correspondence course).
Alkalize with Alka-Seltzer
“MONEY MAKING FORMULAS”
“Radios, it is”