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The F-sharp Major 7th Chord is F-sharp, A-sharp, C-sharp, and E-sharp. The E-sharp is the white key F, so three notes are black keys and the top one is white. That top note sits just a half step below the root, which gives the chord its soft, open sound.
Let’s go through some charts that will familiarize you with the F-sharp Major 7th Chord and how to play it in the various forms you will encounter in pieces of music. First, we’ll look at the fundamental chord and its inversions; then, we’ll explore some more complex voicings.
The major 7th adds the note a half step below the octave, which gives the chord a soft, open sound with a little friction in it. In Baroque and Classical music it appears as a passing seventh inside a sequence, and in Romantic and Impressionist music it is used as a color chord on the tonic and the subdominant.
The common keys that use this chord are flat keys, so it is usually written as G♭ major 7th, and the spelling follows the key. The G♭ major 7th chord is the tonic (Imaj7) in G♭ major and the subdominant (IVmaj7) in D♭ major. In minor keys, it is the mediant (IIImaj7) in E♭ minor and the submediant (VImaj7) in B♭ minor.
The cadence to recognize is ii7 – V7 – I. In G♭ major that is A♭m7 – D♭7 – G♭maj7, where the tonic is colored with its seventh. In a sequence the seventh leans down by step into the next chord, and in a color chord it is left hanging for a moment before the music moves on. Try playing G♭ and then G♭maj7 and listen to what the added note does.
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