'Shuffle Along' (Blue Heron Records) by Ehud Asherie is a gas gas gas. Ehud may look like a rock star but he's an excavator. For his 12th CD, he's excavated the music Eubie Blake and Noble Sissle wrote in 1921 for the first all-Black Broadway musical of the same name. Rather than treat it as a a museum relic, he uses it as the root for his playful experimentations.