If I had the job of filling a 90 min cassette tape which is around 30ish songs.
Not sure about the songs but am sure about the artists.
Robert Johnson, Bessie Smith, Muddy Waters, Lightnin; Hopkins, John Lee Hooker,, Howlin' Wolf, Jimmie Rodgers, The Carter Family, Johnny Cash, Elvis, Lena Horne, Al Green, Marvin Gaye, Sam Cooke, Tom Waits, Townes Van Zandt, Steve Earle, JJ Cale, The Beatles, The Stones, Etta James, Bob Dylan. Merle Haggard, Hank Williams, Bonnie Raitt, Delbert McClinton, Kris Kristofferson. Prince, The Temptations and Ray Charles