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6.10.3 "Heartbreak Hotel": 8 Bar Blues
“Heartbreak Hotel” (introduced earlier) is an example of 8-bar blues, a progression that has several common variations. Have a look at Figure 76 as you go over the basic “rules” for doing chord maps.

FIGURE 76: Chord Map of “Heartbreak Hotel”, an 8-bar Blues Tune
Chord Map Basics
- Start with a drawing of the circular harmonic scale with modified Nashville Roman numerals on the inside of the circle and the chords of the particular key around the outside. Remember: the Roman numerals on the inside never change but the chords around the outside do change. (You will find the circular harmonic scales for all 12 major/minor pairs of keys in Appendix 1 of this book, or at Roedy Black Music.) You can choose any key you like. In “Heartbreak Hotel,” the choice of the key of E major/C♯ minor is purely arbitrary.