What is Major 7th on Steroids? Well, Major 7th on steroids is Jamal's PHAT way of playing an M7th chord by adding the 9th to it and removing the 3rd.
Ok, don't let the definition confuse you if you can't really grab that.
The idea is that you are not playing a M7th chord the normal way. You are adding some "phatness" to it.
