Roots of the Blues Various Artists
The most used Key signatures in this album are Em, C♯, A♯, F, D♯m, C, G♯, E, B, F♯, D♯, D, with major being the most reccurent mode.
Harmonic Profile Roots of the Blues
Album has 12 different key signatures, divided as follows:
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10 songs are major (out of 12).