Recording of Hugh le Caine's Dripsody. It is an study for variable speed recorder. It was composed in one night. Le Caine used a recording of a drop of water falling into a bucket, which he re- recorded different speeds, obtaining the heights of a pentatonic scale. Using 25 connectors and the variable speed tape recorder, it produced thousands of sound effects. Dripsody begins with the original sound of the water drop, repetition loop. Shortly afterwards, by adding more loops, the density of the sound increases and an arpeggio figure is produced. The complete work, lasting one minute and twenty-six seconds, was finished at 7.30 am, and Le Caine played it for those who arrived at the laboratory.

An interview with Woody Herman, Bobby Hackett, and Louis Armstrong, conducted in late June of 1955, in connection with the performance of Louis Armstrong and His All Stars at the Carter Barron Amphitheater, Washington, D.C.

Willis Conover interviews Art Tatum, with selected Tatum recordings. Playlists and schedules within the Conover collection confirm the program was assembled in May, but Tatum's performances in Washington, D.C. in early April provide an approximate interview date.

The entire program for the jazz hour (second hour) of Music USA, including tune selections and an interview with Kai Winding. This is the first interview conducted for Music USA.

Part of the jazz hour (second hour) of Music USA, including tune selections and an interview with Milt Gabler. "Laura," the last selection in this part, was not included in the final broadcast.

The first part of the jazz hour (second hour) of Music USA, including tune selections and an interview with Bob Thiele. The interview with Steve Allen occurs in Part II.

Recording of John Gilliland interviewing Patti Page and Jack Rael on the KCUL House of Wax program in Fort Worth. Gilliland later used this audio in the Pop Chronicles radio program series. The interview is in tracks 1 through 5, with unrelated material on the tape before and after.

The entire program for the jazz hour (second hour) of Music USA, including tune selections and an interview with Chet Baker.

The entire program for the jazz hour (second hour) of Music USA, including tune selections and an interview with Eartha Kitt.

The entire program for the jazz hour (second hour) of Music USA, including tune selections and interviews with Barney Bigard, Bobby Hackett, Woody Herman, and Louis Armstrong.

The entire program for the jazz hour (second hour) of Music USA, including tune selections and an interview with pianist Billy Taylor.

The entire program for the jazz hour (second hour) of Music USA, including tune selections and an interview with Peggy Lee.

The second part of the jazz hour (second hour) of Music USA, including tune selections and an interview with Duke Ellington.

A 1955 radio program presenting an account of the history of jazz. Willis Conover later adapted this program's introduction for use in the Jazz at the Smithsonian television programs which he hosted.

Part of the jazz hour (second hour) of Music USA, including tune selections and an interview with Milt Gabler. The first and second selections in this part, "Laura" and "Spanish Lace," were not included in the final broadcast.

The entire program for the jazz hour (second hour) of Music USA, including tune selections and an interview with George Shearing.

The entire program for the jazz hour (second hour) of Music USA, including tune selections and interviews with John Lewis and Sarah Vaughan.

Unedited audio of Willis Conover's interview with Benny Goodman, including short statements for various broadcast services within VOA, and a longer interview presumably for Music USA #394-B.

The first part of the jazz hour (second hour) of Music USA, including tune selections. The interview occurs in Part II.

The second part of the jazz hour (second hour) of Music USA, including tune selections and an interview with Gene Krupa and Buddy Rich.

Part of the jazz hour (second hour) of Music USA, including tune selections and an interview with Milt Gabler.

The first part of the jazz hour (second hour) of Music USA, including tune selections and an interview with Gene Krupa and Buddy Rich.

The entire program for the jazz hour (second hour) of Music USA, including tune selections and an interview with Dave Brubeck.

Willis Conover interviews Johnny Hodges. The intended program and broadcaster are not stated.