Detailed Instructions: In this task, you are given a sentence and question which can be answered using the sentence. Your task is to answer the question using the information from the sentence. The answer to the question is unique and it is a continuous text span from the sentence.
Q: Sentence: A substantially revised version of '' Champagne Charlie '' was recorded in 1932 by the American blues singer Blind Blake .
Question: who recorded something?
A:
American blues singer Blind Blake