Conversation so far:
What happened in the 1960s with Toots Thielemans?
Toots Thielemans wrote Bluesette, a jazz standard, which he performed on harmonica or while playing the guitar and whistling in unison.

Question: Are there any other interesting aspects about this article?
Self-contained rewrite: Are there any other interesting aspects about Toots Thielemans in the 1960s?