Cited as A leading light of the Michigan space-rock scene by Allmusic, the minimalist group formed in 1993 around the core husband-and-wife duo of guitarist Carl Hultgren and bassist/singer Windy Weber. (Most of the band's pieces feature no vocals, however.) The band was prolific from the outset up to 2001, whereupon they took a hiatus of a few years.

The music of Windy & Carl borrows heavily from the sounds of 1980s era bands on 4AD Records, specifically that of Robin Guthrie of the Cocteau Twins and various other dream pop and shoegazer acts.

Unlike noteworthy prior drone/ambient artists (such as Cluster, Brian Eno, Popol Vuh, et al.), Windy & Carl's drones are primarily derived from guitar, particularly via usage of delay effects, reverb effects, and E-Bow, rather than synthesizers. Another noteworthy aspect of W&C's sound is the absence of drums.