Glad you like it!
Yes, Cerati was good, very different to the kind of music people do today. Unfortuneatly We had a lost generation due to the crisis (Cumbia Villera) and the quality of the rock bands in these days are really bad! Not all but most of them.
If you want to hear good Argentinean Rock you have to go back to the 70's, 80's and the begining of the 90's
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Sorry for the list, a bit long.
Good argentine guitarrist: Pappo, Ricardo mollo, Walter Giardino, David Lebon, Julio Salinas...
Saludos!