Example image of eyePlorer eyePlorer map for 'Blues': African American Ballad Chant Deep South Field holler Music genre Musical form Ring shout Spiritual (music) Work song Blue note Jazz Major scale Pitch (music) Rhythm and blues Rock and roll Twelve-bar blues Country blues List of blues genres Chicago blues Delta blues Jump blues Piedmont blues Electric blues Blues-rock George Colman the Younger African-American music Dallas Blues Hart Wand Depression (mood) Chord progression Bessie Smith Big Bill Broonzy Eight bar blues How Long, How Long Blues Key to the Highway Trouble in Mind (song) Herbie Hancock Ray Charles Sixteen bar blues Watermelon Man (composition) Sitting on Top of the World Time signature Chord (music) Degree (music) Roman numerals Subdominant Tonic (music) Dominant (music) Turnaround (music)