I don't have a particular theme song, but my favorite CD of those I own is the music from Henry V. I also like the message in Die Gedanken Sind Frei (My Thoughts Are Free), a German song that was sung by people who fought against the NAZIS, including prisoners. Prisoners who sung it were punished. Unfortunately, I don't remember the whole song, which was used in an old true story movie about an amazing escape from Colditz Castle during the war. I think part of the song goes--"You can hold my body and keep me in chains, but in my mind there is always freedom." There is more to it, but that's all I can remember. The song has both a German language version and an English language version.
There were a number of stars in the movie, but the only one I can remember at the moment is Chuck Connors.
My own CD music collection is somewhat limited, but I do have a "Reader's Digest" collection of show tunes, also a polka CD, some Christmas CDs, a Celtic CD, one or two classic music CDs, a Greatest Marches CD, and a few others. I also have some old cassettes of different kinds of music, including some Christmas tunes, classic music, marches music, Peter, Paul, & Mary, and some other assorted tunes. I also have some TV show theme tunes on cassette that I recorded myself, and a PBS John Denver show that I recorded a long time ago. Unfortunately, there was a vent near the recorder when I recorded that, and the air was blowing through. You can hear the white sound of the air blowing along with John Denver's singing.
I also have some cassette collections of old tyme radio shows. Some are mysteries, some are comedies, there are some adventure stories, and I have a big collection of radio episodes of Gun Smoke. That started before the TV version, and the radio Matt Dillon was played by William Conrad. I sometimes take audio books, and old radio shows on cassettes or DVDs out of the local libraries, too.
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If a man does not keep pace with his companions, perhaps it is because he hears a different drummer.
Let him step to the music which he hears, however measured, or far away.--Henry David Thoreau