F#maj7 Chord
The F#maj7 chord is F sharp, A sharp, C sharp, E sharp played together. Start with the F sharp major triad and add E sharp, the major seventh. The last note sits one semitone below the next F sharp, which gives this four-note chord its close upper interval.
- Notes: F sharp-A sharp-C sharp-E sharp
- Formula: 1-3-5-7
- Imaj7 in F# major
Which notes make F#maj7?
The lower three notes, F sharp-A sharp-C sharp, form a major triad. Add E sharp to get F sharp-A sharp-C sharp-E sharp. The formula is 1-3-5-7. Here, “7” in the formula means a major seventh; the written chord symbol maj7 makes that explicit.
E sharp is played on the F key. That spelling matters: it is the seventh of F sharp, not an unrelated F natural added to the chord.
How do the inversions change the sound?
A four-note chord has three inversions. Move the bottom note up an octave each time:
- Root position: F sharp-A sharp-C sharp-E sharp, with F sharp lowest.
- First inversion: A sharp-C sharp-E sharp-F sharp, with A sharp lowest.
- Second inversion: C sharp-E sharp-F sharp-A sharp, with C sharp lowest.
- Third inversion: E sharp-F sharp-A sharp-C sharp, with E sharp lowest.
The chord name remains F#maj7 because the four notes stay the same. When you hear a bass note beneath it, pay attention to that lowest sounding note as well as the hand position. Chord Inversions shows how a slash symbol records a specified bass.
Where might you meet F#maj7?
In F# major, F#maj7 can be the home chord, Imaj7. In C# major, the same notes form IVmaj7, the chord on the fourth scale degree. The notes do not change when the role changes; the surrounding chords tell you whether the root feels like home. Play F#maj7, then a plain F sharp major triad. The triad removes the seventh without changing the root, third or fifth. This is a practical way to hear what the added note contributes before you try the chord in a longer progression.
What changes in F#7?
Lower only E sharp by one semitone while keeping F sharp, A sharp, C sharp. You have changed the major seventh to a minor seventh, making F#7. The symbol 7 on its own means this different chord. Compare F#7 Chord after playing both versions on the same root. In a typical major-key V7 resolution, the minor seventh can move down by step; F#maj7 does not automatically have that same dominant job.
Can you hear it without a label?
Play the major triad, add E sharp, and pause. Sing the added note, then sing the next F sharp above it. The distance is one semitone. Move the F sharp bass lower while keeping the upper notes where they are and notice how the wider spacing changes the texture. The pitch names stay fixed, but the way they sit in your ear changes.