Smog

Bill Callahan is an American singer-songwriter, who has also recorded and performed under the band name Smog.

Callahan started out as a highly experimental artist, using substandard instruments and recording equipment. His early songs lacked melodic structure and were clumsily played on poorly tuned guitars, resulting in the dissonant sounds on his self-released cassettes and debut album Sewn to the Sky. Much of his early output was instrumental, a stark contrast to the lyrical focus of his later work. His use of lo-fi techniques was not primarily an aesthetic preference, but stemmed from his lack of resources to make and record music. Once he signed a contract with Drag City, he started to use recording studios and a greater variety of instruments for his records.

From 1993 to 2000, Callahan's recordings grew more and more "professional" sounding, with more instruments, and a higher sound quality. In this period he recorded two albums with the influential producer Jim O'Rourke and Tortoise's John McEntire, and collaborated with Neil Hagerty. Callahan also worked closely with his then-girlfriend Cynthia Dall in his early career, and they contributed vocals to each other's albums. After 2000's Dongs of Sevotion, Callahan began moving back to a slightly simpler instrumentation and recording style, while retaining the more consistent songwriting style he had developed over the years. This shift is apparent in albums such as Rain on Lens, Supper, and A River Ain't Too Much to Love.