Julio Ledezma

Arco Iris (Spanish for Rainbow) were a rock group from the late 1960s until the late 1970s in Argentina, influential in Argentine rock history. While tagged as an 'acoustic' Argentine rock band in the beginning, Arco Iris were pioneers (with Chilean band Los Jaivas), infusing rock with regional folk music, as well as one of the first bands that projected their beliefs through their music and lifestyle (in their case around the art of yoga). In the 1980s Arco Iris minus Santaolalla moved to the United States to live in the mountains of California, where they have been involved in the jazz-rock and new-age music scene.

Arco Iris frontman Gustavo Santaolalla would emerge in the 1980s as one of the artists and producers that popularized rock music beyond Argentina and aided the rise of Rock en Español (with Miguel Mateos, Charly Garcia, etc.) by promoting rock acts all over Latin America.

The band's origins are traced to the late 1960s, when Santaolalla, Ara Tokatlián, and Guillermo Bodarampé recorded a three-song demo tape, and met producer Ricardo Kleinman (owner of the successful radio show Modart en la Noche ). Kleinman agreed to sign the group with the condition that they sing in Spanish and drop the English name "The Crows".

"Arco Iris" first released two singles: "Lo veo en tus ojos" and "Canción para una mujer" (no relation with the Vox Dei song with the same name). Months later, they released a second disappointing single and met former model Danais Wynnycka (a.k.a. Dana), who became their "spiritual guide", and began to live communally with her. Their next single, "Blues de Dana" (obviously dedicated to Wynnicka), reflected changes in the music as well.

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Wikipedia