Jazz is neither specific repertoire, nor academic exercise... but a way of life.
A lot of jazz is like that; it sells over a period of time.
A chord is just the name of a sound.
They always say that jazz doesn't sell, but it's a lie, because it does sell, and it sells consistently year in and year out.
Because people really got tired, too, of the same old formatted sort of thing, and the same old formatted music.
The music we play is kind of hard to explain. It's music that we really feel.