A few from CANADA that were headed for Broadway but died on ther road....
DUDDY: THE MUSICAL - based on "The Aprenticeship of Duddy Kravitz" this musical starred Lonny Price and toured across Canada but did not move to Broadway as planned. Maybe because at every stop the critics trashed it. All that survives is a 30" ad (showing a clip of the song "Trust Me") shown on the 1982 Tony Awards telecast here in one of the station breaks.
DURANTE - based on Jimmy Durante's life and career (using the songs he popularized) opened in Toronto the summer of '89 and toured several U.S. cities, folding in San Francisco.
I did not see either one so I cannot comment on the quality of either show.
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