Last year, Guided By Voices celebrated their 40th anniversary as a band in a way many other groups might have: by playing two triumphant hometown shows opened by an array of beloved peers and disciples. They also marked their 40th year in a way not many other bands would ever attempt: by releasing three new full-length albums within the span of about 10 months. Such uncommonly prolific output has always been standard operating procedure for Robert Pollard and his band, and four decades in, they’re still going strong.