Season 4 aired between 25 Jan 1979 and 25 Jan 1979, 13 episodes.
Episodes
E01
John McEuen and Friends with Elizabeth "Libba" Cotten
E02
Dan Del Santo followed by Taj Mahal
E03
The Neville Brothers followed by Robert Shaw and Lightnin' Hopkins
E04
Nashville Super Pickers followed by Tom T. Hall
E05
Leon Redbone followed by Steve Fromholz
E06
Tom Waits
E07
Delbert McClinton followed by Cate Brothers
E08
Pure Prairie League followed by Bobby Bare
E09
Alvin Crow followed by Marcia Ball
E10
Hoyt Axton
E11
Little Joe y La Familia followed by Esteban Jordan
E12
Doug Kershaw followed by Clifton Chenier
E13
Norton Buffalo
25 Jan 1979
E06
Tom Waits
E07
Delbert McClinton followed by Cate Brothers
E08
Pure Prairie League followed by Bobby Bare
E09
Alvin Crow followed by Marcia Ball
E10
Hoyt Axton
E11
Little Joe y La Familia followed by Esteban Jordan
E12
Doug Kershaw followed by Clifton Chenier
E13
Norton Buffalo
25 Jan 1979