Complex sentence: Atlantic Records executive Jerry Wexler heard Eddie while he was doing session work in Muscle Shoals and called Hinton, "the next big thing", however Hinton's battles with mental illness, drug and alcohol addiction prevented that from happening.
Split into simpler sentences: Atlantic Records executive Jerry Wexler heard Eddie while he was doing session work in Muscle Shoals and called him "the next big thing". However, Hinton's battles with mental illness, drug and alcohol addiction prevented that from happening.