The key of C♭ Major has a key signature of 7 flats (B♭, E♭, A♭, D♭, G♭, C♭, and F♭). The C♭ Major scale has the notes C♭, D♭, E♭, F♭, G♭, A♭, and B♭. Major keys, along with minor keys, are a common choice for popular songs. The three most important chords, built off the 1st, 4th and 5th scale degrees are all major chords (C♭ Major, F♭ Major, and G♭ Major). For chord progressions, statistics, and tendencies, view this key in Hooktheory Trends