40th Day was one of Denver's most popular alternative-rock acts from the late '80s through the mid-'90s. The band's earliest work was atmospheric post-punk reminiscent of an early haunted U2. But by the time James Nasi joined on bass, 40th Day was changing musical directions. The 1991 album Lovely Like a Snake brought its more ethereal melodies together with a hard-edged, almost industrial sound for what is arguably the group's best record. The outfit went through various singers, including Shawn Strub and Tammy Ealom, and broke up around 1996. But on February 9, 2012, Nasi — now writing music as I'm a Boy — got guitar prodigy Neil Satterfield to join him at Rockbar for a few classic 40th Day numbers to remind those present of the power of that music. A more full-fledged reunion can't be far behind.