The Jimi Hendrix Experience released two thriving albums during 1967, Are You Experienced and Axis: Bold as Love, that innovate the two guitar, trio and recording methods. Spooky Tooth produced their next album Spooky Two in March 1969. The album was an essential tough rock milestone. Gram Parsons with The Byrds produced the influential LP Sweetheart of the Rodeo in late 1968, forming the foundation for nation rock.