I just spotted this last night, so don't have definite plans.

It seems that ETH is playing at the White Mule, 1530 Main ST, Columbia; with Caravan of Thieves. Tuesday 20 April, doors open at 6, music at 7.

$8 in advance, $10 at the door. I have not been to the club, but I understand it's small, a good listening venue.