Sometimes chord progressions are referred to by numbers ... appearing in many pop songs and jazz standards of the time. You can use it in other styles though, so jam around the progression and ...

If we took an Em-A7-D (II-V-I) progression and decided to jazz it up with 7ths and extensions, we might well start with this Em9 chord. The F# (9th) is our highest note. I mention this because the ...