David Grisman will release a new 16-track album of mostly unreleased songs recorded with Del McCoury Band. Dubbed Del and Dawg – Hardcore Bluegrass in the Dawg House, Grisman and McCoury made the recordings during two jam sessions at Dawg studios in 1992 and 1999. In addition to Grisman and McCoury, the recordings feature McCoury’s sons Ronnie (vocals and mandolin) and Rob (five-string banjo) as well as Jason Carter (fiddle) and Mike Bub (bass). Eleven of the sixteen tracks have never been released.

“The Del McCoury Band is arguably the best traditional bluegrass band in America, and I’m honored to have been able to share the stage with Del and the boys on various occasions over the last four decades,” Grisman said in a statement.

Grisman and McCoury began what would become a life-long friendship 1963 when they met through Bill Monroe. The gig also happened to be McCoury’s first gig as a member of Monroe’s band. Del and Dawg played their first show together three years later at Troy, NY’s Rensselaer Polytechnic Institute.

Del and Dawg – Hardcore Bluegrass in the Dawg House is now available for download.