CFCGAC Guitar Tuner
CFCGAC A Minor 7#5 - Guitar tuning, chords & scales
Tuning Analysis: Joni's Open C57723
This unique tuning, prominently associated with folk fingerstyle and specifically linked to legendary artist Joni Mitchell, is referred to as the "Joni" Tuning: C57723. It offers a rich, resonant soundscape perfect for intricate fingerpicking and open melodic voicings.
Verbal Analysis
Stepping into this tuning feels like opening a new sonic world. The heavily dropped strings create a lower, fuller resonance, particularly appealing for accompaniment and creating drone-like textures. It encourages a different approach to the fretboard, often simplifying chord shapes into open, ringing voicings. The overall feel is warm and melancholic, yet capable of bright, shimmering melodies, making it ideal for the storytelling and emotive qualities found in folk and contemporary acoustic genres. Its unique structure invites exploration, rewarding players with surprising harmonic possibilities.
Technical Analysis
The open string notes for this tuning are from low to high: C2-F2-C3-G3-A3-C4.
When strummed open, this tuning produces a rich C Major chord with added 4th and 6th (Cmaj(add4,add6)). The notes C, F, G, A, C are present, creating a full and harmonically complex sound without any fretting. This inherent open chord quality makes it highly conducive to drone techniques and provides an immediate harmonic foundation.
The intervals between the open strings are particularly interesting:
- 6th String (C2) to 5th String (F2): Perfect 4th
- 5th String (F2) to 4th String (C3): Perfect 5th
- 4th String (C3) to 3rd String (G3): Perfect 5th
- 3rd String (G3) to 2nd String (A3): Major 2nd
- 2nd String (A3) to 1st String (C4): Minor 3rd
The consecutive perfect fifths between the F2, C3, and G3 strings provide a powerful harmonic base, while the higher strings (G3-A3-C4) offer a more melodic and tighter cluster of notes. This combination creates a versatile palette for both chordal accompaniment and intricate melodic lines.
Chordal Opportunities:
Due to the open Cmaj(add4,add6) chord, many common shapes will be re-voiced or simplified. Barre chords, especially on lower frets, will often yield rich, extended C major family chords or related inversions. For instance, a barre across the 2nd fret will likely produce a Dsus2 or related chord due to the intervals. Experimentation with single-finger barres or simple two-finger shapes will reveal unique voicings, often sounding more complex than their minimal fingerings suggest.
How to Tune
This tuning involves significant downward adjustments for most strings from standard E Standard tuning. Please tune carefully and check intonation regularly.
- 6th String (Low E): Tune down 4 semitones to C2.
- 5th String (A): Tune down 4 semitones to F2.
- 4th String (D): Tune down 2 semitones to C3.
- 3rd String (G): Keep as is; no change (0 semitones) at G3.
- 2nd String (B): Tune down 2 semitones to A3.
- 1st String (High E): Tune down 4 semitones to C4.
Important Note: Several strings are tuned down by 4 semitones. While these movements are at the threshold where careful tuning is advised, they do not strictly exceed the -4 semitone mark that typically suggests a different string gauge. However, such significant drops in tension can affect string feel and intonation. Always exercise caution and monitor string tension, especially for long-term use in this tuning.
String 6: C2 (Low C)
String 5: F2
String 4: C3
String 3: G3
String 2: A3
String 1: C4 (High C)
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Tuning Map
- Fret
- S6
- S5
- S4
- S3
- S2
- S1
- -13
- D#
- G#
- C#
- F#
- A#
- D#
- -12
- E
- A
- D
- G
- B
- E
- -11
- F
- A#
- D#
- G#
- C
- F
- -10
- F#
- B
- E
- A
- C#
- F#
- -9
- G
- C
- F
- A#
- D
- G
- -8
- G#
- C#
- F#
- B
- D#
- G#
- -7
- A
- D
- G
- C
- E
- A
- -6
- A#
- D#
- G#
- C#
- F
- A#
- -5
- B
- E
- A
- D
- F#
- B
- -4
- C
- F
- A#
- D#
- G
- C
- -3
- C#
- F#
- B
- E
- G#
- C#
- -2
- D
- G
- C
- F
- A
- D
- -1
- D#
- G#
- C#
- F#
- A#
- D#
- 0
- E
- A
- D
- G
- B
- E
- 1
- F
- A#
- D#
- G#
- C
- F
- 2
- F#
- B
- E
- A
- C#
- F#
- 3
- G
- C
- F
- A#
- D
- G
- 4
- G#
- C#
- F#
- B
- D#
- G#
- 5
- A
- D
- G
- C
- E
- A
- 6
- A#
- D#
- G#
- C#
- F
- A#
- 7
- B
- E
- A
- D
- F#
- B
- -4
- -4
- -2
- 0
- -2
- -4