Organ Players:

Providing they are not playing with a backing file ---
1-Bass pedals
2-Left hand
3-right hand
4-Programed drums

Because they are playing the organ, more is required from the them --- and because more is required, they play better than the arranger player - (normally)

Other than drums, organ players play all the parts, which allows them to play with more expression. The melody is out front, left hand chords support the right hand, and the bass fills the room.

You can get some of their sound by eliminating most of the Accomp. But then, you have to play better. I love left hand bass, but it will not fit everywhere.
More of my thoughts, John C.

PS, after all the organ concerts I went to, I finally bought a Delta 500 Wersi organ with column speakers on either side. After three months of lessons, I hated what I sounded like. Out it went.