Conversation so far:
What was the first instrument Jimi Hendrix learned to play?
In 1957, while helping his father with a side-job, Jimi Hendrix found a ukulele amongst the garbage they were removing from an older woman's home.
Did Jimi Hendrix teach himself to play the ukulele?
She told him that he could keep the ukulele, which had only one string. Learning by ear, Jimi Hendrix played single notes, following along to Elvis Presley songs.

Question: What was the next instrument he learned to play?
Self-contained rewrite: What was the next instrument Jimi Hendrix learned to play after the ukulele?