There are a handful that I never tire of... CAROUSEL, FLOWER DRUM SONG, GYPSY. MOST HAPPY FELLA, CALL ME MADAM (film ST), ON YOUR TOES, BABES IN ARMS, MY FAIR LADY, MUSIC MAN, MAME, SUBWAYS ARE FOR SLEEPING, THE HAPPIEST GIRL IN THE WORLD, COMPANY, MERRILY WE ROLL ALONG, and RAGTIME. These are all permanently installed on my MP3 player. Others come and go getting a lot of listens for a while then retired for several months: ANYTHING GOES, TAKE ME ALONG, SOUND OF MUSIC, EVITA, PIPPIN, WH0OP-UP, MILK AND HONEY, HAPPY HUNTING. Then there are recnt OCR's that went onto the player got a few listens when they were new and then fell out of rotation: SPAMALOT, LIGHT IN THE PIAZZA, DIRTY ROTTEN SCOUNDRELS, CURTAINS, WICKED, BOOK OF MORMON, JERSEY BOYS, GREY GARDENS. My player will only hold about 40 full OCR's so the list gets revised with some regularity. I actually bought second one and use the older (smaller capacity) player for Christmas music exclusively. I had a thought of having several players in rotation each with a different mix of cast albums. So far I haven't purchased the extra units.
Cast albums are NOT "soundtracks."
Live theatre does not use a "soundtrack." If it did, it wouldn't be live theatre!
I host a weekly one-hour radio program featuring cast album selections as well as songs by cabaret, jazz and theatre artists. The program, FRONT ROW CENTRE is heard Sundays 9 to 10 am and also Saturdays from 8 to 9 am (eastern times) on www.proudfm.com