Walked down e Tackled - Tradução em português

Olá amigos!

Tenho mais uma dúvida no texto que estou fazendo a leitura analítica.

Anyone who walked down the halls of the facility on a June evening in 1968 probably would have been shocked by the contrast between McCartney recording the wistful "Blackbird" on an acoustic guitar in Studio Two while Lennon was in Studio Three manipulating and mutilating tape loops for "Revolution 9," his and Ono's musique concrete tape experiment.

After McCartney's dominant role on Sgt. Pepper's, Lennon was eager to assert more control on the White Album. His song "Revolution 1" was the very first tune the group tackled for the record when the sessions began on May 30.

Negritei as expressões no contexto.

Desde já, obrigado!