The Beatles introduced what rock-and-roll music innovations?

Answer 1

Elaborate orchestration

Inventive recording technology

Complex harmonies

Answer 2

Crossing over to a rock and roll style and pioneering the Merseybeat genre, adopting country and western style, orchestral strings, psychedelics, and Indian Classical Music at various points helped them to remain fresh while utilizing tuneful melodies and a close coordination between words and music. It has been said that 'A Day in the Life' represented a more sophisticated category than Pop Music, blending Celtic music, rhythm and blues, and country and western. They also used the Mellotron, the clavioline, the Indian music sitar and swarmandel, tape loops, sound effects, double tracking and vari-speed recording to open the floodgates for the 'British Invasion'.

Answer 3

All of the above