Looking beyond the "obvious" titles, some cast albums I enjoy revisiting....
Herbert: BABES IN TOYLAND
Gershwin: LADY BE GOOD
Kern: ROBERTA
Bizet/Hammerstein: CARMEN JONES
Loewe & Lerner: PAINT YOUR WAGON
Porter: CAN-CAN
Wright, Forrest/Borodin: KISMET
Adler & Ross: THE PAJAMA GAME
Rome: FANNY
Loesser: MOST HAPPY FELLA
Styne, Comden & Green: BELLS ARE RINGING
Willson: THE MUSIC MAN
Herman: MILK AND HONEY
Merrill: CARNIVAL
Coward: SAIL AWAY
Rodgers: NO STRINGS
Lane & Lerner: ON A CLEAR DAY...
Yeston: GRAND HOTEL
Coleman: CITY OF ANGELS
Kander & Ebb: STEEL PIER
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