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What about the C7 - Bb7 - Am in the final 8 bars? I guess the Bb7 is the tritone sub of E7, right?
Yes, the C7 to Am was like a C7 to F, where the F is reharmonization by its Mediant (Am). With the Bb7 the composer is just emphasizing the A-7 more intently with a tritone sub of Am’s authentic V7 (E7).
@@ant_adlibs Thank you!
What about the C7 - Bb7 - Am in the final 8 bars? I guess the Bb7 is the tritone sub of E7, right?
Yes, the C7 to Am was like a C7 to F, where the F is reharmonization by its Mediant (Am). With the Bb7 the composer is just emphasizing the A-7 more intently with a tritone sub of Am’s authentic V7 (E7).
@@ant_adlibs Thank you!