A band's jazz sound flowed into a tapered recording horn (center of photo), which was connected to a cutting stylus. The vibrations moved the stylus, cutting grooves in the wax coating of a cylinder or disk that was rotated by a crank. Variations in the grooves reflected the frequency and amplitude of the sound waves. The wax version was then converted into a master from which records were made.

of stories this month > Get unlimited stories
You've read  of  free articles. Subscribe to continue.

Unlimited digital access $11/month.

Get unlimited Monitor journalism.