来自MSN8 个月
Jazz guitar theory 101: 5 ways you can use tritone substitutions to jazz up your chord ...
Then, if we move the G7 up a tritone/aug 4th/dim 5th, we will get a Db7 ... then shift it up a tritone (#4/b5) to give us Eb7. Then let’s go even further and make it a Eb9.