Are you saying all of this, in general? Meaning, are you saying that because a top classical pianist may not spend much time in the gospel arena that, generally, they couldn't measure up to a top flight Gospel pianist?
I was speaking about Derick Jackson in particular.
Things like big fat full chords, blazing runs, and jazzy voicings carry more weight in Gospel than they do in the Classical arena.
In a Gospel music setting with a Top Classical Pianist, I think Derick would excell in a Gospel music setting more than a Classical Pianist would. It's really an improvisational atmosphere, and not all Classical Pianists can improvise. Those who study jazz can. Those who don't, can't. And even those who study jazz may be able to improvise a song they know, but can't listen to a song one time and pick it up.
Experience is the best teacher.
Many gospel musicians, while in a service, are forced to hear a song one time through and then try to play it. Because of this a Gospel musician who's been playing in church services for 20+ years would be better able to pick up a song after hearing it once through. They'd also be better improvisors because of this.
Things like Sight Reading, articulation, and technique carry more weight in classical than they do in the Gospel arena.
As clean and crisp as Derick Jackson sounds to US, to the ear of a Classical Pianist it might sound sloppy. To classical musicians, being accurate and clean and having perfect technique is invaluable. They run scales and do Hanon exercises more than 99% of Gospel Musicians alive.
So if he was in a classical setting, he wouldn't fare too well. I don't know if he reads music, but even if he DOES he CAN'T read music as well as a Top Flight Classical Pianist. By Top Flight I mean men/women who have been playing for 20+ years, who play before audiences of thousands.
Simply put, Derick Jackson is a great Pianist by Gospel Music Standards, and those are the only standards he should be judged by.
The same goes for a Classical Pianist.