I saw Wait a Minim on tour (in Wilmington, Delaware the night after MLK was killed) and liked it a lot. The show ran exactly a year in NYC and then another season on the road in the US. I saw most of the original cast but alas, not Dana Valery.
There is a song in Act Two that is a send-up of an English madrigal that is very funny. A woman is locked into a chastity belt and then the key is lost. This was racy material in 1968 for a high school senior. This song would be a great piece of material for current cabaret. There are many characters within the song and it would be a clever and fun challenge to play them all differently, male and female.
The race issue was handled well again for the 60s. The show was originally done in South Africa under apartheid. Actors of different races were not allowed to appear on stage with one another and audiences were segregated as well. Wait a Minim sort of got around this by putting a key in the program. Characters of color would wear a specific style of hat of which there were more than one. Each performer played at least one person of color.The absurdity of apartheid were highlighted when whites playing Black would have scenes with one another that were essentially the same as whites. There were also scenes between Black and white which was just Not Done. This was very subversive in South Africa, but the authorities could do nothing because no laws were violated.
Why the show was not integrated outside South Africa is something I don't know.
The cast recording is very enjoyable and would be welcome, but perhaps only to a limited market.