I, Tom Lehrer, individually and as trustee of the Tom Lehrer Trust 2007, hereby grant the following permissions:

All copyrights to lyrics or music written or composed by me have been permanently and irrevocably relinquished, and therefore such songs are now in the public domain. All of my songs that have never been copyrighted, having been available for free for so long, are now also in the public domain. In other words, I have abandoned, surrendered and disclaimed all right, title and interest in and to my work and have injected any and all copyrights into the public domain.

The permission granted includes all lyrics which I have written to music by others, although the music to such parodies, if copyrighted by their composers, are of course not included without permission of their copyright owners. The translated songs on this website may be found on YouTube in their original languages.
Performing and recording rights to all of my songs are included in this permission. Translation rights are also included. //

So help yourselves, and don’t send me any money.