Very pleased to find a thread about this reissue this morning. I had somehow missed the earlier thread about Mighty Quinn, so when I stumbled upon a promo/used copy of this disc on Saturday I was rather shocked. I vaguely recall that this had been rumored as a "lost Connoisseur" or something like that, so the title jumped out at me... but I had no clue as to who/what Mighty Quinn was or why this was released with no fanfare on this board (obviously, I just missed the fanfare).
Anyway, as others have noted, this is a really terrific disc. "Ostinato" jumps out as a fast fav, but the whole thing is interesting. Love the many different tempos and sound textures, all coming from what's essentially a trumpet quartet. Looking forward to more MQ discs in the future...