"Big Betty" is also non-original, a treatment of Huddie Ledbetter's song "Black Betty" in a manner reminiscent of The Spencer Davis Group's hits, providing the only real point of contact with the band's rhythm and blues past.
"Big Betty" is derivative, adapting Huddie Ledbetter's "Black Betty" with a sound akin to The Spencer Davis Group's hits, thus maintaining the connection to the band's rhythm and blues roots.