Bay Region newgrass jam music group Hot Buttered Rum have already been referred to as a rock-band playing bluegrass musical instruments (the bandmembers themselves contact what they carry out “thin air California bluegrass”), with music influences which range from blues, rock and roll, and jazz to Celtic and old-time string music group music through the Appalachians, the group could nearly end up being termed bluegrass fusion. The group was shaped after Zachary Matthews (mandolin, fiddle) and bassist Bryan Horne’s music group Oversoul do some unplugged gigs. Matthews and Horne enjoyed the audio and energy of playing acoustic, and following a one-month walking tour from the Sierras in 1999 with Nat Keefe (electric guitar) and Erik Yates (banjo, electric guitar, Dobro, ukulele, flute, clarinet, sax, accordion, piano), the four came back towards the Bay Region and shaped the Popular Buttered Rum String Music group, adding Aaron Redner (fiddle, mandolin) being a 5th member. The group released a live record, Live on the Freight and Salvage, in 2002, adopted in 2004 by In These Parts, that was documented in Fairfax by engineer Dave Dennison. The group shortened its name to Warm Buttered Rum for 2006’s Well-Oiled Machine, that was made by Mike Marshall and presented guest places from Peter Rowan and Darol Anger. Reside in the Northeast, with songs drawn from numerous shows on the 2006 tour, premiered in 2007.