EbBb

EbBb is a compact notation used in music to indicate two pitch classes: E-flat and B-flat. In tonal terms, the interval from E-flat up to B-flat is a perfect fifth, a foundational relationship in many scales and harmonies associated with the key of E-flat major and its relative minor, C minor.

As a dyad, Eb and Bb appear in various contexts. They form the core of an Eb major or Eb minor triad, where Bb is the fifth. In chord notation, Eb/Bb denotes an Eb triad with Bb in the bass. The two-note collection can also be realized as a power chord (Eb5) on fretted instruments. The two notes may be played together or in close voicing to create a stable harmony.

The string "EbBb" without punctuation is not a standardized chord symbol in most notation systems, but it is used in educational materials, tablature, or pitch-class analysis to denote the simultaneous sounding of Eb and Bb. Outside music, EbBb has no widely recognized standardized meaning.