Chord-Scale Explorer
Select a chord type to see which scales fit and when to use each one.
Chord-scale theory maps each chord type to one or more scales that sound consonant over it. Rather than memorizing arbitrary note choices, you learn which scales "fit" each chord and choose based on the musical context.
The idea is simple: every chord implies a set of tensions and extensions. A scale that contains the chord tones plus complementary extensions will sound coherent when played over that chord. Different scale choices add different colors and levels of tension.
For example, a dominant 7th chord (like G7) can take several scales depending on context. Mixolydian gives a basic, unaltered sound. The Altered scale provides maximum tension. Lydian Dominant offers brightness. The choice depends on what comes before and after the chord, the style of music, and the mood you want.
Select a chord type above to explore its scale options.