C7#9

— About this chord

C7#9 (1-3-5-♭7-♯9), famously known as the "Hendrix chord," clashes a major third against a sharpened ninth for a gritty, bluesy dissonance that feels both major and minor at once. It's the signature sound of funk-rock rhythm guitar, adding a snarling edge to dominant vamps in rock, funk, and blues. On guitar the classic compact grip sits on the middle four strings, easily moved anywhere on the neck for a quick key change. Common as a I7#9 tonic-color chord in blues-rock riffs or as a spicy dominant substitute in funk progressions. Also searched as C7 sharp 9 or the Hendrix chord.