Rock Movement in Posadas in the 70'80's

It takes me to remember some day in the 70's in a bus that takes us to the center of our city, filled "to the brim" of bustling students carrying his element of study under his arm, among which some trinomial that I integrate differentially carried vinyls or records with acronyms such as: YES, ELP Floyd, Santana, Almendra, Manal, etc.. Some folder with stickers of those groups and some peace sign. Some book by Herman Hesse or Jacques Prevert. And in long chats we discovered the same tastes and ideas, which made us "cofrades". Thus I have cemented a lifelong friendship with César, a talented man of life and guitar virtuoso who has been my greatest influence and source of my admiration. We always wondered how beings like us could feel similar things while being different from the collective? (What antennae did we possess to pick up those vibrations that led us to think that with music we could change the world? Long hours, nights, of listening in front of a "Winco" listening to "Ten Years After" playing I would like to change the world. MIGUEL ANGEL ANTONIO