There are (5) bands with this name. 1) INDEX were formed in early 1966 in Grosse Point, Michigan. In '66 drummer Jim Valice (17 years old) met Gary Francis. Jim played in a garage band, and Gary played another band. One day they had a jam session with one more cool guitarist John B. Ford. Their first jam was exciting, the sound was full and powerful with John's technical guitar playing. In early '67 the band played 'Johnny B. Good' and 'Mustang Sally'. At the time Gary didn't have his own bass. Jim and John bought a violin shaped bass for Gary as present.