EIO, or Ensemble of Irreproducible Outcomes, may seem to be a strange name for a trio, but it nicely captures the group's mission. David D. McIntire (clarinet, ocarina, electronics), Ryan Oldham (trumpet, flugelhorn) and Brian Padavic (double bass) have vowed never to play a tune the same way twice. Their compositions tend toward the avant-garde with the above-named instruments stretched further and further into uncharted territories.

The Ensemble of Irreproducible Outcomes plays Wednesday, February 25, at Bop Shop Records, 1460 Monroe Avenue. 8 p.m. $10 Donation, $5 students. 271-3354; bopshop.com.