I have another one...

The little triangle or delta.

My Abersold book says it means Major so one can have a C(delta)7 is a Cmajor 7.

However, some other tables on the internet say the delta means Maj 7 so that a C(delta) is a Cmaj7


Which would be correct?

The piece I am working on has Eb(delta) amidst other normal looking chords.
And also Eb(delta)6



Regards
Bernt


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