Sixthman has announced its initial 2012 Cayamo line-up, including John Hiatt, John Prine and Lyle Lovett. For the uninitiated, this is a February cruise that features some of the top Americana music artists in a weeklong music festival on the ocean. Among others booked for next year: Richard Thompson, Keb Mo, Buddy Miller, Loudon Wainwright, Iris Dement, Greg Brown, Shawn Mullin, James McMurtry, Chuck Cannon, the Works Progress Administration and Enter the Haggis. Details at www.cayamo.com.