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#990670 - 05/08/08 10:57 AM Chord with a triangle
majones Offline
Full Member

Registered: 12/21/07
Posts: 331
Loc: Deep East Texas Piney Woods
In lead sheet music I am seeing a chord notation I am not familiar with. For example the Bb chord with a triangle. What does the triangle indicate?

While we are at it --- this same piece has a Db07, (small 0). That's another one I have not run across before.

Thanks for you help.


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#990671 - 05/08/08 11:06 AM Re: Chord with a triangle
DragonPianoPlayer Offline
2000 Post Club Member

Registered: 12/12/06
Posts: 2462
Loc: Denver, CO
Hi Malcolm,

I had to look this one up.

CΔ means Major Seventh Chord. This would be C E G B

C7 would be Dominant Seventh Chord. This would be C E G Bb

Hope this helps.

#990672 - 05/08/08 11:08 AM Re: Chord with a triangle
gmm1 Offline
1000 Post Club Member

Registered: 06/03/06
Posts: 1674
Loc: Spokane WA
The way I understand it, the triangle means the chord is a Major 7th, so instead of saying BbMaj7, they put Bb (triangle).

Opps. Forgot the small o - that means diminished - with a line through it means 1/2 dim.
"There is nothing remarkable about it. All one has to do is hit the right keys at the right time and the instrument plays itself." Johann Sebastian Bach/Gyro

#990673 - 05/08/08 11:21 AM Re: Chord with a triangle
Triryche Offline
1000 Post Club Member

Registered: 08/11/06
Posts: 1456
Loc: Milwaukee, Wisconsin
Also, for a major or minor 7th chord, you can many times leave out the 5th, which would be F for a Bb major 7th, so for a Bb major 7th you could get by with playing Bb D A

#990674 - 05/08/08 11:32 AM Re: Chord with a triangle
Triryche Offline
1000 Post Club Member

Registered: 08/11/06
Posts: 1456
Loc: Milwaukee, Wisconsin
btw, in case you do not already know, if you are playing from lead sheets that are using triangles to indicate a major chord, they may also use dashes to indicate a minor chord (especially if they are hand written). For example D-7 would be a D minor 7th

#990675 - 05/08/08 01:23 PM Re: Chord with a triangle
majones Offline
Full Member

Registered: 12/21/07
Posts: 331
Loc: Deep East Texas Piney Woods
As always thanks for the fast reply.



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