Not too long-ago, Anders Osborne and Jackie Greene were booked to do a few solo acoustic shows together. One thought, and the other agreed, that the shows would be a helluva lot more fun if they joined together and did them “in the round.” For two friends that are gifted as both singer-songwriters and guitarists—impromptu “jamming” is second nature. But for these shows, they’ve ditched their bands for some stripped down acoustic performances, each taking a turn with one of their songs, while the other provides accompaniment.