After a rotten few years for annual occasions, the beloved acquainted ones really feel notably resonant now. Such is the case with the annual BowiElvis Competition, which celebrates two iconic rock ’n’ roll musicians with an affinity for performative aptitude who share a Jan. 8 birthday. The date takes on added weight since Bowie died two days after his birthday seven years in the past. However the BowiElvis Competition — created by Houston’s Splice Information — revels within the pleasure of origin tales greater than it does well-known demises. So the occasion is a celebration and never a wake. There will probably be, as all the time, a number of levels of reside music (with Pecos Hank, Nick Gaitan and Luba Dvorak), costume contests and sandwiches involving peanut butter match for the King … and a sandwich match for a Duke.