What scale goes with the F#-7b5? I'm double checking what iRealPro has given
iRealPro is giving the following scale for the F#-7b5 chord (F# minor 7th chord with flat 5).
F#, G, A, B, C, D, E
Can someone confirm that this is a valid scale for this chord?
I'm asking because I thought the scale would be different (described below).
Here is how I understand things. F# major has 6 sharps
F#, G#, A#, B, C#, D#, E#
So for minor7, flat 5 I would use:
A natural (flat 3rd) (due to minor)
C natural (flat 5) (due to flat 5)
E natural (flat 7) (due to dominant 7)
So a scale that could be played over the F#-7b5 chord is:
F#, G#, A, B, C, D#, E
Thanks for your help.
(2)2 Comments
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Since F#7b5 is part of the set of chords made up from notes of the G major scale, those very notes will work. It'd be called F# Locrian, centring on F#. Another way to regard this would be to use the notes of A jazz melodic minor, which are A B C D E F# G#. Again, centring on F#. There must be a theoretical reason, but it escapes me right now! But both sets of notes work fine.
The D/D#/E bit comes from Am blues, and again works well. Could be also called D/Eb/E, of course.
So now, we have the following notes which all 'work'. A B C D Eb E F# G G#. Maybe a simpler thing would be to say 'avoid A# C# and F'...
Both scales look valid to me, although your suggested scale will sound pretty exotic due to your C-D#-E pattern. The F#-G-A-B-C-D-E scale looks more conservative, as it's F# Locrian and therefore shares its notes with the G major scale.
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