Minor

Same shape, one flat third

Lower the major third by one fret and the whole mood turns. That single half-step is the difference between a road-trip chorus and a break-up verse.

How we score it

root     the note the chord is named after
third    minor — three frets up from the root
fifth    perfect — same as major
feeling  darker, more introspective

When to use it

Minor is the default of indie, blues, and a lot of electronic music. It pairs with its relative major — same notes, different home.