He almost doesn't have any technical problems
and he can play whatever he wants with pedals.
But the thing which is still underdeveloped
is his sense of organ touch.
Too often I find him lifting the fingers off the keyboard.
Too often he releases the chords not together.
This is especially obvious in middle voices.
In piano playing it's not so easy to notice
but the organ, especially the tracker instrument is unforgiving.
When I said to him that his pianistic habits are stalking him,
he agreed and promised me to keep an extra eye on it.
The thing is, he often practices organ pieces on the piano.
This is fine except when he forgets it's an organ, not a piano.
So here's my advice to all of the pianists who play the organ:
Try to imitate the organ touch you get on piano.
Avoid making dynamics and play mezzo piano.
Keep a contact with the keyboard at all times.
This will help you get rid of the pianistic habits
when you play the organ..
Diatonic Sequence in E Minor: V6-i