C#13

— About this chord

C#13 (C# dominant 13th) stacks the 6th/13th on top of a dominant 7th, giving a rich, shimmering jazz color that implies the full extended dominant sound without needing every note. A staple of big-band voicings and jazz-blues turnarounds, it works as a V13 resolving to F#, or as a colorful substitute anywhere a plain C#7 would sit. Common in comping for swing, soul-jazz, and funk vamps where guitarists favor compact movable grips. Also searched as C#dom13, Db13, D♭13.