“Oh, yes, this is powerful stuff.” So sings Sean Hayes on his latest album, and although he is not talking about his own music, he may as well be. The singer-songwriter’s lyrical, lilting sound is reminiscent of Jack Johnson with a slightly funkier twang, and his songs are both calming and energizing at the same time. His album Run Wolves Run was released last year, and his songs have recently been featured on TV shows and Subaru commercials. Sing along when Arann Harris and the Farm Band open on Saturday, July 23, at Hopmonk Tavern. 230 Petaluma Ave., Sebastopol. 9pm. $15. 707.829.7300.