1972.  - tolantongo son (mutacion),adiciones (additions),ya te vi lupe ya te vi (i saw you lupe i saw you),mutaciones basadas en el canon de pachelbel,estudios micro ritmicos a 4 partes (four part micr,no...

2011. The fusion of native folk instruments and trippy psychedelic rock elements produced some of the finest music to emerge from South America in the early 1970s: Congregacion (and Los Jaivas) from Chile, Arco Iris..