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Bass chord companion

C7b5 Chord

Learn the C7b5 chord on bass with chord tones, intervals, playable arpeggios, and fretboard maps.

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1C3Eb5Gbb7Bb

Bass chord tones and arpeggios

Play these tones one at a time to outline the chord. The maps show the complete formula; the numbered exercises give an ascending path, including extensions in their written octave.

Standard four-string bass: E1 – A1 – D2 – G2. String 4 is low E; string 1 is high G. Fingers 1–4 are index through little finger; 0 is open. Use comfortable hand positions and shift where indicated.

Root on E string

C 7b5 complete chord-tone map around string 4, fret 8. Choose individual tones for a bass line.

C 7b5 Root on E string bass chord-tone mapC 7b5 complete chord-tone map around string 4, fret 8. Choose individual tones for a bass line.EADG789101113b5b713b5

Ascending arpeggio

Follow steps 1–4 below. Keep one hand position.

C 7b5 Root on E string numbered bass arpeggioAscending complete formula: C2, E2, Gb2, Bb2. Play one numbered note at a time.EADG7891234
StepDegreeNoteString / fretFingerPosition
11C24 / 83Fret 6
23E23 / 72Fret 6
3b5Gb23 / 94Fret 6
4b7Bb22 / 83Fret 6

Root on A string

C 7b5 complete chord-tone map around string 3, fret 3. Choose individual tones for a bass line.

C 7b5 Root on A string bass chord-tone mapC 7b5 complete chord-tone map around string 3, fret 3. Choose individual tones for a bass line.EADG23456b5b713b5b71

Ascending arpeggio

Follow steps 1–4 below. Keep one hand position.

C 7b5 Root on A string numbered bass arpeggioAscending complete formula: C2, E2, Gb2, Bb2. Play one numbered note at a time.EADG2341234
StepDegreeNoteString / fretFingerPosition
11C23 / 33Fret 1
23E22 / 22Fret 1
3b5Gb22 / 44Fret 1
4b7Bb21 / 33Fret 1

Full fretboard map

Every C7b5 Chord chord tone across the neck, with roots highlighted for quick orientation.

Interactive

Frets 0–24. Select a position or tap a note to hear it.

GDAEGbBbCEGbBbCEBbCEGbBbCEGbEGbBbCEGbBbCBbCEGbBbCEGb123456789101112131415161718192021222324

Progression examples using C7b5

Try these progressions to hear the harmony in context. On bass, outline each chord with individual target tones.

V to I resolution

Use the dominant sound to pull strongly into a stable major tonic.

  1. V C7b5
  2. /I F Major

Minor-key dominant pull

The same dominant root can resolve into a minor tonic for a darker cadence.

  1. V C7b5
  2. /i F Minor

Chord Tones

DegreeIntervalNote
1RootC
3M3E
b5d5Gb
b7m7Bb

Complete Formula

1 – 3 – b5 – b7

Compound degrees retain their names: 9, 11, and 13 are extensions. A voicing may place their pitches in a closer register.

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