Earth, Wind & Fire

Chicago-founded, Maurice White-led band that treated funk like it belonged in a concert hall — horn arrangements, orchestral strings, and a stage show built around actual spectacle. Their commercial run through the late 1970s crossed funk with jazz, R&B, and pop in a way few bands managed.

Memorabilia here leans toward tour ephemera as much as vinyl. Programs, laminates, and poster art from that era are worth as much of a look as the records themselves.