If Dos Santos, the band that Daniel Villarreal plays drums for, parses their Latin-diaspora music through a funky psych-rock context, his solo debut finds a more nebulous sense of style to build around his vision of jazz-derived improv. But while you could spend a lot of space playing influence/redolence connect-the-dots — some ’60s Chico Hamilton Latin jazz here (“In/On”), some mellow g-funky “Summer Madness”-mode Kool & the Gang there (“18th & Morgan”), shades of cumbia, salsa, and reggaeton-derived grooves just about everywhere — it’s Villarreal’s ability to put rhythm first and let his ensemble players piece together the signifiers as they go that gives Panama 77 the feeling of wide-open joy and the possibilities of cross-cultural musical evolution.