Local ensemble the Gravy Boys new album Crackerjack Whistle ( gravyboys.com) is a fine set of twangy country-rock, with at least one moment of genius: a cover of the Zombies 1969 Brit-pop classic Time of the Season, rendered in the acoustic tones of a back porch hootenanny. No doubt theyll break that one out Friday night at Raleighs Pour House. Town Mountain is also on the bill. Showtime is 10 p.m. and cover is $8 online, $10 at the door. See thepourhousemusichall.com for details.