What is this chord>
I often use (what I call) a passing chord from A to wherever.
I go from A (X02220) to ? (X12020). What is this chord? Steve |
B flat dim7th
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Perfect! Thanks.
Steve |
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beats me, im no musician, this could be number of different chords depending on the inversion- this has the note structure of a G diminished
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Just to let my pedantic side come out, it's usually named A#dim7. You're probably using it as a passing chord to link A to Bm? It's a favourite trick of James Taylor in the key of D, among others. Shower the People, for example.
(A)Foolish pride (A#dim7) When you're (Bm) all by In the key of E it can join A to B7, as in Blue Christmas: (A) Christmas of (A#dim7) white, ah but (B7) I'll have a ... |
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It's certainly a dim7 of some kind, and could be named after any of its notes (with some enharmonic flexibility too). As jerry says,if it's heading for a B-root chord (B major, Bm, B7), then the theoretically correct name is A#dim7, because A#dim7 is the vii chord from B (harmonic) minor. So it naturally resolves to Bm,and can be borrowed to resolve to B major. The notes (stacked in 3rds on the root) are A# C# E G, and A#-G is the defining "diminished 7th" interval (half-step less than a minor 7th). Given that you're starting from A, that's the most likely identity of the chord. But as it's a symmetrical chord, it can go three other ways, acting as vii to three other chords (again, major or minor in each case). As C#dim7 (C#-E-G-Bb), it will go to Dm, D or D7 (that could also be a likely scenario starting from A); As Edim7 (E-G-Bb-Db), it will go to Fm, F or F7; As Gdim7 (G-Bb-Db-Fb), it will go to Abm, Ab or Ab7 (and if you call Abm G#m, then the dim7 is Fxdim7: Fx-A#-C#-E, strictly speaking). Those all apply whichever note is in the bass. E.g, even if Bb is in the bass, if the chord goes to Dm it's C#dim7 (and the bass would then be Bb, not A#). Still, this is only about theoretical correctness (proper enharmonic spelling for a vii chord)! In practice, it's normally sensible to call a dim7 after its bass note, not its functional root note. |
THIS is a great online tool
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Steve |
Little zero means, "diminished."
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In a text program you can use the keypad to get the ASCII code: hold Alt and hit 167 on the number keypad. And then copy it in: º You can get the half-dim symbol that way too: Alt + 155: ø And this site - https://www.reddit.com/r/musictheory/new/ - has all these useful symbols in the sidebar for copying and pasting: ♯ ♮ ♭ ø ° Δ ♩ ♪ ♫ ♬ |
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