Question 1 : Northwest Alabama’s role in the music industry began in 1969 when musicians David Hood, Roger Hawkins, Barry Beckett, and Jimmy Johnson formed their own studio in Muscle Shoals. The musicians became known as the Muscle Shoals Sound Rhythm Section and were the first rhythm section to own their studio. Initially, the idea of a “Muscle Shoals sound,” as in a Memphis or Motown sound, was a joke. But the idea stuck, and in time, there would indeed come to be a distinct Muscle Shoals sound. According to the passage, the "Muscle Shoals Sound" originated in which state?