C9 vs C7add9 clarification

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Leeacoustic81
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Joined: Tue Feb 10, 2026 8:31 am

C9 vs C7add9 clarification

Post by Leeacoustic81 »

Just wondering if a C9 is the same as a C7add9?
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BluesGuy
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Joined: Mon Jan 26, 2026 5:26 pm

C9 vs C7add9 clarification

Post by BluesGuy »

39 years as a professional musician. I’ve never seen “X”7add9 as a chord symbol. EVER. Don’t use it.
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StudioPro
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C9 vs C7add9 clarification

Post by StudioPro »

Yes, but C7add9 is NOT standard, it defeats the whole point of "add", dont use it... since C9 is for C E G Bb D, when you want C E G D only, that's why we have the "add" thing, to separate it from the 7-ness.
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