From the original 16 tracks discovered in iswc-net there are some that in the end ARE NOT in the musical:
CHEEKY WEE PINT
I HOPE YOU HAVEN'T CHANGED ON ME (Sung by Gordon and Stella at the previews but deleted from the musical after those representations)
PERSONAL
SONG ABOUT LOVE
THAT D DO NICELY
YOU CAN'T EAT THE SCENERY
Maybe some are there with another titles, "That'd Do Nicely" can be "That'd do me", but the rest, I guess there are tracks that in the end didnt get into the musical.