.Sourdough Slim and Robert Armstrong joyously rekindle the cowboy classics, country blues, vintage jazz, and string band favorites from 1920s and ’30s prewar America. Whether capturing the haunting refrain of a Jimmie Rodgers’ blue yodel or swinging out a hot novelty number, everyone gets caught up in the fun these two cutups have on stage. Their raucous and often heartfelt singing is accompanied by a dizzying array of vintage acoustic instruments, including accordion, guitar, banjo, ukulele, National steel guitar, musical saw, and harmonica…all dished up with a hearty dose of vaudevillian stagecraft, making for a delightfully entertaining experience.