[youtube]http://www.youtube.com/watch?v=dJVoCRlVqDg[/youtube] The weekly woodshed sessions with Anders Osborne, John Fohl and Johnny Sansone have evolved into something more than just an occasion to work out new material. This year, they even took it to a Jazz Fest stage. They’re at Chickie Wah Wah tonight; here they are a a Threadhead event playing “Summertime in New Orleans.”