Complex sentence: In 1926, Howell was heard playing on the streets of Atlanta and was recorded for the first time by Columbia Records, which released "New Prison Blues", written while he was in prison and the first country blues to be issued on the label.
Split into simpler sentences: In 1926, he was heard playing on the streets of Atlanta and was recorded for the first time by Columbia Records. They released "New Prison Blues", written while in prison and the first country blues to be issued on the label.