If you're unfamiliar with the Media Preservation Foundation, please visit their website.
The MPF is an IRS registered public charity which is dedicated to the archival of media history mainly aimed towards Radio and Television ID Jingles and associated items. It was established in 1994 by Tracy E. Carman and Donald Worsham as an archive for documents and important recordings related to the broadcasting industry.
Each month it offers a collection of jingles for a very reasonable cost of US$20. Proceeds from each sale help offset the Foundation's operating costs.
https://jingles.org/
Faster cars, younger women, older cheese, more money . . .