Well, here's my situation...
There's a song in Bb that I play and there's a chord that's used to set-up the ending pass of the song. Here's the noting...
Key of Bb
Bass/LH/RH
A/F-B/Eb-G-Bb
(From there it's a 'walking' 2-5-1 progression)
If the 'F-B' tri-tone goes with either Db or G, how is it possible that it also fits with chord as well?
Everyone has posted very valuable information within this post. One thing that I would like to add is that when you are refering to tritones you must remember the foundation of the tritones.
The theory behind the tritones is this...
Tritones= 1.,3., & the b7 or dominant 7 and you are playing your 3rd and the 7th on your right hand and your root on your left. The reason each tritone accounts for two different root notes is simply this......
If we took the key of C for example and broke it down we would have this......
C=1 D=2 E=3 F=4 G=5 A=6 B=7
with that in mind we take our 1 which is C, 3 which is E and our flatted 7th or (b7) and we have Bb giving us C/EBb
Now we can ask ourselves since E is the 3rd of C and Bb is the flatted 7th(b7) ... what key has the E as the flatted 7th(b7) and the Bb as the 3rd ?
Well here we go The Gb scale is this.....
Gb=1 Ab=2 Bb=3 Cb=4 Db=5 Eb=6 F=7
From here we can pull out our 1.,3.,& our flatted 7th(b7) and we have
Gb/BbFb Fb=E E=Fb ........
So here is why we can use the same tritone for two different notes.... If you notice on Aljeres nice sounding chords he is doing exactly this. The only reason his chords are bigger is because he is doubling up on some of the notes that he is using...... Hope that helps....
God Bless You,
jayzee
www.gospelmusictrain.com