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 they’ll break that one out Friday night at Raleigh’s 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.