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Slash Chords Introduction A Slash Chord is (generally) a Major triad over a bass note. Slash Chords are actually quite simple to understand, they are analysed like any other chord – by looking at the notes that comprise them. Slash Chords are notated as Chord/Note. So a D/C reads ‘D slash C’ or ‘D over C’ and is a D Major Triad over a C Bass Note.
Slash Chords exist because: They are an easier way to read complex chord notation For example instead of writing CMaj7#9#11 (a complex looking chord), you can just write B/C They give a ready-made voicing for the chord They give you a ready-made bass-line (often a chromatic bass-line)
The triad can be played in any inversion but generally the 2nd inversion is considered the strongest.
Chord Ambiguity Slash chords can be a bit ambiguous because they are often missing a few chord tones. Some are missing a 3rd and 7th – so can technically be either Major, minor or Dominant
BUT you have to keep in mind each chord’s available tension
(http://www.thejazzpianosite.com/jazz-piano-lessons/jazz-chords/available-tensions/)
For example, a minor chord cannot have a #11; therefore a Slash Chord that has a #11 must be either Major or Dominant D/C – has no 3rd or 7th so can be either CMaj13#11 or C13#11 (though usually the former) but cannot be Cm13#11
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Slash Chords The majority of Slash Chords use a Major triad on top; however, you can also use other chords, such as: Diminished, augmented or minor triads: Gm/C = C9 7th chords: Dm7/G = G9sus Including Maj7, min7, V7, Aug7, half dim, full dim chords
These Slash Chords are all analysed in the same way – by looking at the notes they are composed of. Below is a list of all possible slash chords that use a Major triad with their e ective chord name and related scales: Slash Chord
Notes
E ective Chord
Scale
C/C
C|CEG
CMaj
C Major C Lydian
D♭/C
D/C
C | D♭ F A♭
C | D F# A
D♭Maj7
C Locrian
Csus♭9♭13 (C7 sub)
C Phrygian
D7
C Lydian
CMaj13#11
C Lydian
C13#11
C Lydian Dominant
Slash Chord
Notes
E ective Chord
Scale
E♭/C
C | E♭ G B♭
Cm7
C Dorian
E/C
C | E G# B
CMaj7#5
C Lydian Augmented
F/C
C|FAC
FMaj
F Major
G♭/C
C | G♭ B♭ D♭
C7♭5♭9
C Altered
C Half/Whole diminished G/C
A♭/C
C|GBD
C | A♭ C E♭
CMaj9
C Major
CmMaj9
C melodic minor
A♭ Major
A♭ Major
C7#9♭13
C Altered
A/C
C | A C# E
C13♭9
C Half/Whole diminished
B♭/C
C | B♭ D F
C9sus
C Mixolydian
Cm11
C Dorian
CMaj7#9#11 (CMaj7 sub)
C Whole/Half diminished
B/C
C | B D# F#
Altered Co7 CmMaj7♭5 We will come across the idea of simplifying chord notation by breaking the chord up into components in future lessons. For the moment, I will just list the di erent concepts that use this technique: Slash chord: D/C = 1 Bass note over a triad Upper Structure (http://www.thejazzpianosite.com/jazz-piano-lessons/jazz-chordvoicings/upper-structures/): USII = 2 Bass notes (tritone) over a triad Polychord:
= (3 bass notes) Triad over a triad
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Jazz Piano Tutorial - Slash Chords
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