C#maj7 7ª Mayor Acorde

A major triad with a major seventh. Warm, sophisticated sound used in jazz and R&B.

C#maj7 Acorde — Quick Answer & Harmonic Definition

The C#maj7 (Major 7th) chord consists of the notes C#, F, G#, C. It is constructed from the root note C# using the major 7th interval formula (0–4–7–11 semitones).

Formula: 0 – 4 – 7 – 11
Notes
C# – F – G# – C
Intervals (semitones)
0 – 4 – 7 – 11
Type
7th Chord

C#maj7 on Piano

Press highlighted keys simultaneously to play the C#maj7 chord.

R
C# (Root (R))
2
F (Major 3rd)
3
G# (Perfect 5th)
4
C (Major 7th)

C#maj7 on Guitar

The C#maj7 chord uses notes C#, F, G#, C. Build a voicing by finding these notes on any strings — root on the 6th string is a common starting point for barre chord shapes.

Interval Analysis

Degree Interval Name Semitones Note in C#
Root Root (R) 0 C#
3rd Major 3rd 4 F
5th Perfect 5th 7 G#
7th Major 7th 11 C

About the C# 7ª Mayor Chord

The C#maj7 chord (C# 7ª Mayor) consists of 4 notes: C#, F, G#, C. A major triad with a major seventh. Warm, sophisticated sound used in jazz and R&B.

To build any major 7th chord, apply intervals of 0, 4, 7, 11 semitones above the root. Starting from C#: the notes land on C#, F, G#, C.

Playing C#maj7 on Piano

Press C#, F, G#, C simultaneously. In root position, C# is lowest. First inversion places F in the bass for a lighter sound; second inversion uses G# as the bass note.

Common Chord Progressions Using C#maj7

  • I–IV–V: C#maj7 – F#maj7 – G#maj7 (blues and rock)
  • I–V–vi–IV: C#maj7 – G# – A#m – F# (pop staple)
  • I–vi–IV–V: C#maj7 – A#m – F# – G# (50s progression)

The C#maj7 Chord in Context

The C#maj7 (7ª Mayor) chord features a distinctive a major triad with a major seventh. warm, sophisticated sound used in jazz and r&b. built from the intervals 0–4–7–11. It provides rich harmonic color and tension across pop, jazz, classical, and contemporary compositions.

Other C# Chords

C#
Major
C#m
Minor
C#7
Dominant 7th
C#m7
Minor 7th
C#dim
Diminished
C#aug
Augmented

7ª Mayor Chord in All 12 Keys

Cmaj7 C#maj7 Dmaj7 D#maj7 Emaj7 Fmaj7 F#maj7 Gmaj7 G#maj7 Amaj7 A#maj7 Bmaj7
Virtual Piano
Play C#maj7 on piano
Virtual Guitar
See on the fretboard
C# Scale
Notes that fit C#maj7
Songs
Find songs using C#maj7

Knowledge Base & FAQs

C#maj7 Chord — Frequently Asked Questions

Everything you need to know about our browser-based Web Audio engine, instruments, and music theory workspace.

What notes are in the C#maj7 chord?

The C# 7ª Mayor chord contains: C#, F, G#, C.

These notes are derived by applying the major 7th interval formula (0–4–7–11 semitones) to the root note C#.

What is the C#maj7 chord used for?

A major triad with a major seventh.

Warm, sophisticated sound used in jazz and R&B. The C#maj7 chord is used across pop, rock, jazz, and classical music. As the I chord in the key of C# major, it functions as the most stable resting point in progressions.

How do you play C#maj7 on piano?

On piano, play C#, F, G#, C simultaneously.

In root position, C# is the lowest note. Inversions move the bass note up — first inversion has F lowest, second inversion has G# lowest.

How many notes are in a major 7th chord?

A major 7th chord has 4 notes: C#, F, G#, C (in C#).

It is a 7th chord, extending beyond the basic triad.

What is the difference between C# major and C# minor?

The C# major chord (C#–F–G#) uses a major third (4 semitones), giving it a bright, happy sound.

The C# minor chord (C#–E–G#) uses a minor third (3 semitones), giving it a darker, emotional sound.

What key does C#maj7 belong to?

C#maj7 naturally serves as the I chord in the key of C# major.

It also appears as IV in the key of G# major, and as V in the key of F# major.

Can I play C#maj7 on ukulele?

Yes.

The ukulele uses GCEA tuning with 4 strings. The C#maj7 chord notes (C#, F, G#, C) can be fretted on a ukulele, though the shapes differ from guitar due to the 4-string layout and shorter scale.

What chords go well with C#maj7?

In the key of C# major, C#maj7 pairs naturally with F# major (IV), G# major (V), and A#m (vi).

The classic I–IV–V (C#maj7–F#–G#) is the foundation of blues, country, and rock.

What is a chord inversion of C#maj7?

An inversion places a non-root note in the bass.

C#maj7 root position: C# in bass. First inversion: F in bass. Second inversion: G# in bass. Inversions create smoother bass line movement without changing the harmony.

How do I memorize the notes in a major 7th chord?

Remember the formula: 0–4–7–11 semitones from root.

For C#maj7: start on C#, add 4 semitones, then 7 semitones, then 11 semitones. Practicing this across all 12 roots builds instant recognition of any major 7th chord.