Conversation so far:
what happened with billie holiday in 1929?
Hollan.
From 1929 to 1931, they were a team, performing at clubs such as the Grey Dawn, Pod's and Jerry's on 133rd Street, and the Brooklyn Elks' Club.
what else did they do?
As her reputation grew, she played in many clubs, including Mexico's and the Alhambra Bar and Grill.
what music did she produce?
Hammond arranged for Holiday to make her recording debut, at age 18, in November 1933.
what did she record?
She recorded two songs: "Your Mother's Son-in-Law" and "Riffin' the Scotch", the latter being her first hit.
"Son-in-Law" sold 300 copies.

Question: how many copies did the other two sell?
Self-contained rewrite: How many copies did "Your Mother's Son-in-Law" and "Riffin' the Scotch" sell?