TRONOPATHIC WAVES Pupa form this band in the late 60s and early 70s. Kenny Olson was on bass and vocals. Kenny Tirado drums and vocals. Classic rock with original songs like Bird Of Steal. They were base in there home town at the time Cayey Puerto Rico. They played the clubs and fiestas patronales opeining for Yolandita Monje at one time in Cayey's plaza. David Mcgranahan played guitar with them at times. He is the one in the photo that you can see.