this post was submitted on 15 Jun 2023
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Music Theory
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On the Piano i go from what i know and transpose the chord, until eventually it is just in my head. For the chords in major minor it is pretty straight forward. a major chord has the large third, as major has the half tone step between 3-4 and 7-8. the minor chord is half a tone lowet on the third because 2-3 and 5-6 are the half steps in minor. Since the fifth is identical in both, the 7 accord is one whole tone below the base tone. In case of the 7maj it is just a half step lower.
So a Dmin7 is D, F, A, C
A D7 is D, F#, A, C
On the piano it is easiest though, because you can see the ladder and transposing just needs to mov the fingers up or down a bit.
+1 for piano to learn theory on. Really helped me map out what was even going on.