It’s no stretch to call Charlemagne Records a Birmingham landmark and a musical institution. For 40 years, the Southside store has provided music lovers a cozy and welcoming setting to browse through its extensive collection of CDs and vinyl. On Thursday, September 7, Charlemagne will host an anniversary celebration at Trim Tab Brewing. Featuring live music, prizes and a pop-up store, the event will take place from 6 to 10 p.m.