1. Electrical Analog Recording (1925)

2. Wire Recording (1940s)

3. Tape Recording (1950s)

4. Disk Speeds (45 v. 33 1/3)

5. High Fidelity

6. Stereo Recording (1950s)

7. Multitrack Recording (Sound-on-Sound, Sound-with-Sound)

8. Tape cassette

9. Noise reduction (Dolby, dbx)

10.Portable playback (Walkman)

•The Talkies and the Music Recording Industry: The role of AT&T, RCA and Western

Electric

•The Talkies and the Music Recording Industry: The role of AT&T, RCA and Western

Electric

•The Crooners: Popular Music and Culture

•The Telephone, The Talkies and the Music Recording Industry: The role of AT&T, RCA, and Western Electric

•The Crooners: Popular Music and Culture

•Jazz as the American Music: Big Bands and Swing

•Record Stores and Radio Stations: The Promotion and Selling of Popular Music Recordings

•Recorded Music on the Margins: Hillbilly, Race, and Ethnic Music

•Rock ‘n’ Roll and the Birth of the Teenager