C 6th Flat 5 (C6b5) — Complete Guitar Chord Guide Overview C 6th Flat 5 is a major chord built on the root C. The notes are C, E, Gb, A, following the formula 1 - 3 - b5 - 6. This chord is essential for guitarists exploring Vintage Jazz, Experimental music and appears in countless songs across multiple genres. The 6th Flat 5 quality gives it a distinctive harmonic character that provides brightness and stability. Music Theory The C 6th Flat 5 chord uses the interval formula 1 - 3 - b5 - 6, producing the Root (1), Major Third (3), Tritone (b5/#4), Major Sixth (6). The notes C, E, Gb, A define its unique sonic footprint. Constructing this chord begins with the C major scale (C D E F G A B). Taking the 1st, 3rd, and 5th degrees gives the stable major triad. Playing Tips For advanced level players, C6b5 requires advanced finger positioning and voice-leading awareness. Explore inversions, extensions, and substitutions to fully exploit the chords harmonic potential. Musical Applications C 6th Flat 5 is most commonly found in Vintage Jazz, Experimental music. Typical uses include establishing key centers, providing harmonic stability, and serving as the point of resolution in progressions. Common chord progressions include . Practice Recommendations Start with 5-minute sessions focusing on clean articulation of each note. Gradually increase to 10-minute transition drills with a metronome, then 20-minute arpeggio and rhythm variation practice. At 30 minutes, apply the chord to full progressions at increasing tempos. Record your practice to identify areas for improvement.