"Doctor Gabs is a jazzman who has studiously mastered all the styles up through be-bop. 
Yes, Gabs is an extraordinary technician who knows every trick that his instrument permits, showing off dazzling runs, arpeggios and intricate layering of chords,flourishes brought forth with both a strong right and a thundering and very fast left hand. 
But if he has studied, he does not sound studied. He is an unreservedly emotional player, something many of us have not always found."

Jonathan Leaf, New York Press (2005).