not intended to offend - David asked me to give it a shot - I almost picked The Ganelin Trio - so you guys can relax  
 
I presume the trumpter has heard Feza - my experience is that musicians who are playing music like this would have naturally had an interest in bands like the Brotherhood of Breath and other great composing/inprovising ensembles of the past 20-30 tears - and Feza's playing comes right to the fore when listeneing to MacGregor's big band 
 
plus the trumpeter leans more towards his manner than, let's say, Don Cherry 
 
maybe it's my ears telling me this, who knows??