Guitar tuned in Fourths – C major scale

I III V VII X

E +---+---+---+---+-a-+---+-b-+-c-+---+---+

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B +---+---+---+---+-e-+-f-+---+-g-+---+---+

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F# +---+---+---+---+-b-+-c-+---+-d-+---+---+

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C# +---+---+---+-f-+---+-g-+---+-a-+---+---+

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G# +---+---+---+-c-+---+-d-+---+-e-+---+---+

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D# +---+---+---+---+---+---+---+---+---+---+

First string tuned to E (standard tuning)

Second string tuned to B (standard tuning)

Third string tuned to F# (semi-tone lower than standard tuning G)

Fourth string tuned to C# (semi-tone lower than standard tuning D)

Fifth string tuned to G# (semi-tone lower than standard tuning A)

Sixth string tuned to D# (semi-tone lower than standard tuning E)

© Knarf.le-Gamba