Originally Posted By: ROG
HI Eddie and Mario,

I don't usually get involved in semantics and I have a great respect for the technical
knowledge of both of you, but as I see it Ed is right the that Fmaj7/D = D-F-A-C-E
but that both of you are wrong about D9, which as I understand it is, D-F#-A-E
and Dm9 which is D-F-A-E.

If you regard D-F-A-C-E as a single chord, we would know it over here as Dm7,9. Maybe it's a regional thing?



It might be a regional thing. D9 and Dm9 over here includes the 7th, the C. Here your D-F#-A-E would be called Dadd9 and the D-F-A-E would be called Dmadd9. At least that's how it was taught to me.

https://www.8notes.com/guitar_chord_chart/d9.asp

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