Comment Comment by beefman The earliest tritone substitution I know of appears in Scarlatti K420https://www.youtube.com/watch?v=Nf3_NfuvK8YThere are two tritones in 7-limit just intonation (7/5 and 10/7) and therefore two possible tritone substitutions. Here they're played successivelyhttp://lumma.org/music/theory/demo/progs/TritoneProgressions... parent beefman 2 years ago
https://www.youtube.com/watch?v=Nf3_NfuvK8Y
There are two tritones in 7-limit just intonation (7/5 and 10/7) and therefore two possible tritone substitutions. Here they're played successively
http://lumma.org/music/theory/demo/progs/TritoneProgressions...