I have tried to make an easy piano arrangement of the song with chord symbols for accompanying instruments.
The melody became famous due to a cover version by Simon & Garfunkel on their 1970 album Bridge Over Troubled Water.
More information El Cóndor Pasa, Spanish for "The Condor Passes") is an orchestral musical piece from the zarzuela El Cóndor Pasa by the Peruvian composer Daniel Alomía Robles, written in 1913 and based on traditional Andean music, specifically folk music from Peru. Since then, it has been estimated that around the world, more than 4000 versions of the melody have been produced, along with 300 sets of lyrics. In 2004, Peru declared this song as part of the national cultural heritage. This song is now considered the second national anthem of Peru. It is the best-known Peruvian song in the English-speaking world due to a 1970 cover by Simon & Garfunkel on their Bridge over Troubled Water album. Their version is called "El Cóndor Pasa (If I Could)". (Wikipedia)
The Story Behind El Cóndor Pasa More than fifty years before ‘El Cóndor Pasa’ came to occupy the top music rankings worldwide under the name of ‘If I Could’ by Simon and Garfunkel, Peruvian composer Daniel Alomía Robles, its true author, crossed the Andes in search of autochthonous music and traditions. When he returned to Lima in the early 1900s, Alomía Robles allegedly became fire captain, but the Andean music he had heard during his trips – plus his previous experience as a music composer – inspired him to create a new melody that has gone on to have quite an impact in the world of music. (theculturetrip.com)