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C# Min7♭5 (Half-Diminished) — Bass

C# Min7♭5 (Half-Diminished) on bass: notes C#, E, G, B — free scale chart, no sign-up. A minor triad with a flattened 5th plus a minor 7th — the classic ii chord tone in minor-key jazz.

RC#
b3E
b5G
b7B

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