Part 5: Slash Chords

Slash chords can be one of two things:

  • Inversions: chords that have a one of their notes other that the root in the bass
    • Ex. C/E = C E G with an E in the bass, so low to high, E G C

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  • This is can also be used to make a melodic bass line.
    • The example below is a common use of melodic bass slash chords.

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  • Complex sounds: chords where the bass note isn’t a typical note to the chord.
    • Slash chords can notate exotic dissonances.
      • Ex. C∆7/Db = C E G B with Db in the bass, or, low to high, Db E G B C
    • We often use these when natural and altered extensions would look odd.
      • Ex. writing the C∆7/Db chord above would be a mess any other way.
        • Ex. Dbø7(add∆7)…maybe? Or Db∆7#13…ouch!
    • Let’s try another one.
      • E∆9/C or C∆7#9#5#11. Which would you rather read?
    • It’s also worth mentioning, your players are likely to play these two chords very differently, and the E∆9/C requires less mental gymnastics to play.

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Jazz Theory Copyright © 2023 by Adam Roberts; Keith B. Kelly; and Eric Rasmussen is licensed under a Creative Commons Attribution 4.0 International License, except where otherwise noted.

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