A bit ago I posted about the bibliographies the Copyright Office compiled the three bibliographies of design protection produced by the Copyright Office from 1955 to 1976. Also in 1955, William Strauss of the U.S. Copyright Office produced a Bibliography on Neighboring Rights, which compiled everything known to have been published, up to that time, on the issue of the rights of performers under copyright, including protection under copyright law for sound recordings. This book is available in a few law libraries but does not seem to be online, so I figured it made sense to share it here, especially given the recent decision of the New York Court of Appeals in the Flo & Eddie Case.
The Copyright Office did a very substantial study on performance rights for sound recordings in 1978, which included a selected bibliography of its own, commencing on page 1143.