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[[Image:Woodstock.jpg|right|thumb|The three-day Woodstock music festival in 1969 was the pivotal event of the 1960s peace movement]]

'''Rock music''' is a form of [[popular music]] with a prominent  vocal melody accompanied by [[guitar]], [[drums]], and [[Bass guitar|bass]]. Many styles of rock music also use keyboard instruments such as [[organ (music)|organ]], [[piano]], [[mellotron]], and [[synthesizers]]. Other instruments sometimes utilized in rock include [[harmonica]], [[violin]], [[flute]], [[banjo]], [[melodica]], and [[timpani]]. Also, less common stringed instruments such as [[mandolin]] and [[sitar]] are used. Rock music usually has a strong [[back beat]], and often revolves around the guitar, either solid electric, hollow electric, or acoustic.

'''Rock music''' is a form of [[popular music]] with a prominent  vocal melody accompanied by [[guitar]], [[drums]], and [[Bass guitar|bass]]. Many styles of rock music also use keyboard instruments such as [[organ (music)|organ]], [[piano]], [[mellotron]], and [[synthesizers]]. Other instruments sometimes utilized in rock include [[harmonica]], [[violin]], [[flute]], [[banjo]], [[melodica]], and [[timpani]]. Also, less common stringed instruments such as [[mandolin]] and [[sitar]] are used. Rock music usually has a strong [[back beat]], and often revolves around the guitar, either solid electric, hollow electric, or acoustic.