Conversation so far:
When was Pet Sounds released?
In late 1965, Wilson began working on material for a new project, Pet Sounds.
What songs were on this project?
Wilson even toyed with the idea by releasing "Caroline, No" as a solo single in March 1966, it reaching number 32 on the Billboard charts.
He toyed with the idea of what?
releasing "Caroline, No" as a solo single in March 1966.
What other singles did he record during this time?
The song "Good Vibrations" set a new standard for musicians and for what could be achieved in the recording studio.
How did Good Vibrations do on the charts?
By the time of the universal success of "Good Vibrations", Wilson was underway with his next project, Smile, which Wilson described as a "teenage symphony to God.
What songs are on Smile?
CANNOTANSWER.

Question: What people was he working with during this time?
Self-contained rewrite: What people was Brian Wilson working with duringBy the time of the universal success of "Good Vibrations"?