Wadada Leo Smith has a penchant for trumpet and drum duos. In fact, he recently released a four-disc box set (Emerald Duets, also on TUM) of pairings with a stellar lineup of disparate drummers (Pheeroan aKlaff, Han Bennink, Andrew Cyrille and Jack DeJohnette). For more than 35 years, Wadada has been exploring this terrain on record,...