Conversation so far:
Can you tell me about 1973-1979-Maverick?
Nilsson's disregard for commercialism in favor of artistic satisfaction showed itself in his next release, A Little Touch of Schmilsson in the Night (1973).
Performing a selection of pop standards.
Did it become popular?
This musical endeavor did not do well commercially.
The session was filmed, and broadcast as a television special by the BBC in the UK.
So what eventually happened after it did not do well?
To make matters worse, at a late night party and jam session during the recording of the album, attended by Lennon, McCartney, Danny Kortchmar, and other musicians, Nilsson ruptured.

Question: What did it lead to?
Self-contained rewrite: What did Nilsson's rupture lead to?