Schrodinger's Tritone Sub
ii-V7-I (drop 2 and 3) I was practicing my major ii-V-I's (drop 2 and 3) as usual when I noticed something interesting... First of all, this is a standard progression that goes Dminor7 - G7 - CMajor7. How it normally sounds: On a specific voicing, 1-3-7-5, of the minor-7 chord, it feels natural to go to a dominant flat-5 chord instead of the vanilla V7. ii-V7b5-I (drop 2 and 3) In the key of C, this would be D-F-C-A going to Db-F-B-G, as shown on the left. Accidentally playing this progression, I wasn't offended because it's a cool sound. Observe the chromatic descending line in the bass. Same progression, but with a V7b5: ii-V7b5-bVM7 As I resolved the dominant chord, my fingers, by their own agency, proceeded to play a Gb-Maj7 instead of CMaj7. Voiced Db-F-Bb-Gb, this chord is a tritone away from the tonic, but it doesn't sound bad at all. In fact, if I wasn't expecting to hear a C-Maj7, it'd be a completely no