- Fm7b5 in C key (IVm7b5)
- in fact it is VIIm7b5 in Gb key, which is the mirror key to C
- it contains the B and F tones which are the yellow tones shared by the mirror keys
- it can be thought as a variation to IIb7 (tritone-substituted dominant)
- also it is similar to Iidim
- can be resolved to E7 and then to Am7
- it takes the role of VIIm7b5
- Fm7b5 has the same relation to Bm7b5 as Db7 to G7, it is a tritone substitution of VIIm7b5
- Write an article about this!
- prerequisites:
- theory - tone circle, mirror key
- music excerpt of Tristan introduction
- notation
- illustration images
Mysterious Tristan chord? Just a tritone substitution for VII half-dim!
- background
- Tristan und Isolde
- the actual sound,notation and chords
- the inferred key
- the repetition in another key
- previous interpretations
- my interpretation
- image of the linear chord timeline (like Beatles songs were visualized)
- animation of the chord progression
- tone circle
- mirror key
- tritone substitution
- commonly for V7 -> IIb7
- used heavily in jazz
- [some example]
- it contains a tritone, the other tones are taken from V7 in the mirror key
- mirror key - rotation by 6
- tritone interval maps to itself
- the other diatonic chord which contains the tritone interval is VIIm7b5 (half diminished)
- it can also be tritone-substituted: VII7m7b5 -> IVm7b5
- and IVm7b5 in this context is exactly the Tristan chord!
- very simple interpretation
- purely the key, a single chorss and its function, no magic or exceptions
- it doesn't mean the other interpretations are wrong, they're just more brittle
- further questions?
- in which other musical pieces such a chord is utilized? also in jazz?