Finger Positions

Root Note C

Name C major seventh over F#

Intervals 1P-3M-5P-7M

Relative Minor Am

Notes F#, C, E, G, B

Aliases Cmaj7, CΔ, Cma7, CM7, CMaj7, C^7

How to play the Cmaj7/F# Chord

The Cmaj7/F# is a fundamental major chord in guitar music. To play this chord correctly, ensure your fingers are placed precisely on the frets indicated in the diagram above.

Music Theory Analysis

From a theoretical perspective, the C major seventh over F# is built using the 1P, 3M, 5P, 7M intervals. In the key of C Major, this chord functions as the I chord.

Common Progressions

In music composition, the Cmaj7/F# chord is often used to create tension or resolution.

I-V-vi-IV

C → G → Am → F

vi-IV-I-V

Am → F → C → G

The Diatonic Family

Understanding the "family" of chords that belong to C helps with transposition and ear training.

Triads

C Dm Em F G Am Bdim

7ths

Cmaj7 Dm7 Em7 Fmaj7 G7 Am7 Bm7b5

Scale Compatibility

View All Scales

Major Bebop Lydian Ionian Pentatonic Lydian Pentatonic Augmented Double Harmonic Lydian Augmented Heptatonic Harmonic Major Double Harmonic Major Lydian #9 Purvi Raga Bebop Major Ichikosucho Kafi Raga

* 15 scales found containing the notes F#, C, E, G, B.

Acoustic & Digital Analysis

Digital footprint of the Cmaj7/F# chord for MIDI programming and synthesizer sound design.

MIDI Numbers 66, 60, 64, 67, 71

Frequencies (Hz)

369.9944227116344, 261.6255653005986, 329.6275569128699, 391.99543598174927, 493.8833012561241