# E♭ Augmented 7th piano chord (E♭aug7) E♭aug7 contains E♭, G, B and D♭. An augmented triad with the minor seventh added on top. E♭ and D♭ are black keys; G and B are white. - Canonical page: https://piano.org/chords/augmented-7th/e-flat/ - Entity: chord:augmented-7th:e-flat - Notes: E♭ G B D♭ - Formula: 1 3 ♯5 ♭7 - Intervals from root: P1, M3, m6, m7 - Interval stack (semitones): 4 4 2 - Also written: E♭aug7, Ebaug7, E♭ augmented 7th - Parameters: A440, 12-TET, 165 mm octave, spans centre to centre ## Construction | Degree | Note | Interval from root | Semitones | | --- | --- | --- | --- | | 1 | E♭ | Perfect unison | 0 | | 3 | G | Major third | 4 | | ♯5 | B | Minor sixth | 8 | | ♭7 | D♭ | Minor seventh | 10 | ## Fingering Rest your right hand over the notes with finger 2 on E♭, finger 3 on G, finger 4 on B, finger 5 on D♭. The left hand mirrors it. Right hand 2-3-4-5, left hand 5-4-3-2. Source: piano.org fingering method v1. ## Inversions | Position | Bass | Notes in order | Figured bass | Span | | --- | --- | --- | --- | --- | | Root position | E♭ | E♭3 G3 B3 D♭4 | 7 | 10 st, 138 mm | | First inversion (E♭aug7/G) | G | G3 B3 D♭4 E♭4 | 6/5 | 8 st, 110 mm | | Second inversion (E♭aug7/B) | B | B3 D♭4 E♭4 G4 | 4/3 | 8 st, 110 mm | | Third inversion (E♭aug7/D♭) | D♭ | D♭4 E♭4 G4 B4 | 4/2 | 10 st, 138 mm | ## Voicings (10) | Voicing | Notes | Span | Relation | Omits or adds | | --- | --- | --- | --- | --- | | Close, root position | E♭3 G3 B3 D♭4 | 10 st, 138 mm | identical | none | | Close, first inversion | G3 B3 D♭4 E♭4 | 8 st, 110 mm | identical | none | | Close, second inversion | B3 D♭4 E♭4 G4 | 8 st, 110 mm | identical | none | | Close, third inversion | D♭4 E♭4 G4 B4 | 10 st, 138 mm | identical | none | | Drop 2 | B2 E♭3 G3 D♭4 | 14 st, 193 mm | identical | none | | Drop 3 | G2 E♭3 B3 D♭4 | 18 st, 248 mm | identical | none | | Drop 2 and 4 | E♭2 B2 G3 D♭4 | 22 st, 303 mm | identical | none | | Shell, root ♭7 3 | E♭2 D♭3 G3 | 16 st, 220 mm | subset | omits B | | Guide tones, 3 and ♭7 | G3 D♭4 | 6 st, 83 mm | subset | omits E♭ and B | | Rootless close | G3 B3 D♭4 | 6 st, 83 mm | subset | omits E♭ | ## One-edit neighbors | Becomes | Edit | Changes | Common tones | | --- | --- | --- | --- | | E♭aug | 1 3 ♯5 | drops D♭ | 3 | | E♭7 | 1 3 5 ♭7 | B becomes B♭ | 3 | | E♭9 | 1 3 5 ♭7 9 | B becomes B♭, F | 3 | | E♭ | 1 3 5 | B, D♭ becomes B♭ | 2 | | E♭maj7 | 1 3 5 7 | B, D♭ becomes B♭, D | 2 | | E♭m7 | 1 ♭3 5 ♭7 | G, B becomes G♭, B♭ | 2 | | E♭m7♭5 | 1 ♭3 ♭5 ♭7 | G, B becomes G♭, B♭♭ | 2 | | E♭7sus4 | 1 4 5 ♭7 | G, B becomes A♭, B♭ | 2 | | E♭6 | 1 3 5 6 | B, D♭ becomes B♭, C | 2 | | E♭add9 | 1 3 5 9 | B, D♭ becomes B♭, F | 2 | ## Set theory - Absolute pitch classes: {3, 7, 11, 1} - Relative pitch classes: [0, 4, 8, 10] - Normal order: [11, 1, 3, 7] - Prime form: (0248) - Forte number: 4-24 - Interval vector: <020301> ## Frequencies (close root position) | Note | MIDI | Frequency | | --- | --- | --- | | E♭3 | 51 | 155.56 Hz | | G3 | 55 | 196.00 Hz | | B3 | 59 | 246.94 Hz | | D♭4 | 61 | 277.18 Hz | ## Questions and answers ### What notes are in E♭aug7? E♭aug7 contains E♭, G, B and D♭. The formula is 1, 3, ♯5, ♭7. ### How do you play E♭aug7 on piano? Play E♭, G, B and D♭ together. Right hand fingers 2, 3, 4, 5; left hand 5, 4, 3, 2. E♭ and D♭ are black keys; G and B are white. ### What are the inversions of E♭aug7? 4 positions: root position E♭ G B D♭, E♭aug7/G, E♭aug7/B, E♭aug7/D♭. ### What is the difference between E♭aug7 and E♭aug? Drops D♭. 3 of the notes are shared. ### What is an easy E♭aug7 for small hands? The guide tones, 3 and ♭7 voicing, G3 D♭4, spans 6 semitones or about 83 mm. ### What are the frequencies of E♭aug7? From E♭3 at A440 in 12-TET: 155.56, 196.00, 246.94, 277.18 Hz. ### What is the set class of E♭aug7? Prime form (0248), Forte 4-24, interval vector <020301>. ### How do I transpose E♭aug7 to another key? Keep the 1, 3, ♯5, ♭7 formula on the new root. Caug7 is C, E, G♯, B♭; D♭aug7 is D♭, F, A, C♭. ### Is D♯aug7 the same as E♭aug7? Enharmonically yes: the same piano keys and the same sound, spelled differently. ## Provenance Every derived value above is computed by the piano.org theory kernel from the root, the quality and the stated parameters. Nothing is hand-entered per chord. Machine record: https://piano.org/api/knowledge/v1/entities/chord:augmented-7th:e-flat Last reviewed: 2026-08-12