(1) The development in Duane's technique and sound were his progress from a Fender guitar/amp combination to Gibson/Marshall.
Please check S-V agreement.
(2) And in 1971 when he formed a new version of the Jeff Beck Band and they recorded two albums, Rough and Ready (1971) and The Jeff Beck Group (1972).
Please rephrase for better sentence construction.
(3) He was the third child in a family six.
Should it be "in a family of six"? Please clarify.
(4) At the same time, Berry's white audience loved the country genre, so they started grooving as well. From that point, at 26, he began attracted the first multiracial audience in pop.
Should it be "began to attract"?
(5) Years later, in the summer of 1981, a similarly humiliating occasion went down when Keith took in one of Chuck's club gigs, this time in New York City.
Should it be "similar"? Please check.
(6) A dubious feather in his cap, the song none-the-less added years to his career and lined his pocket.
Should it be nonetheless?
(7) His use of repeating riffs and bends are still incorporated by guitar players today.
Should it be "is still"? Please check.