This bass tone confused me

About Grand Funk Railroad

Grand Funk Railroad (often shortened to Grand Funk) is an American rock band formed in Flint, Michigan, in 1969 by Mark Farner (vocals, guitar, keyboards, harmonica), Don Brewer (drums, vocals) and Mel Schacher (bass). The band achieved peak popularity and success during the 1970s with hit songs such as "We're an American Band", "I'm Your Captain (Closer to Home)", "Some Kind of Wonderful" (a cover of Soul Brothers Six), "Walk Like a Man", "The Loco-Motion" (a cover of Little Eva), "Bad Time" an...