Fortunately for you, it's possible to visit their website now and hear one song from each: "Ghost to Be" from Johnson, which is slow-building and majestic (somewhat reminiscent of Mogwai) with vocals that, as always with him, get right to the heart; and "Down Below" from Bazan, which is upbeat, with some pretty aggressive guitars and his distinctive vocals.
Here's a video for "Ghost to Be":
This video was done by Kevin McAlester, who directed the Roky Erickson documentary You're Gonna Miss Me.
The physical cd/lp will be out June 11, but you can pre-order and get a download right now.
Buy at Undertow Music Collective