[1] Though their sound has certainly matured over the years, this was the breakout album by the band, garnering their first major international success with its release on the Higher Octave music label.
Despite the name of the band implying an ancient South American sound, this was the first album that focused specifically on bringing together native Incan instrumentation with traditional European rock music structures (synthesized pan flute sounds, which previously were used only sporadically, are brought to the forefront here).
Several songs from the album, including Inca Dance and Flute Battle, have been used as background music at the Epcot theme park at Walt Disney World Resort.
The opening theme of the aforementioned song is also copied note-for-note from a pan flute player in Werner Herzog's 1972 film, Aguirre, The Wrath of God.
In addition, Tupac Amaru still receives radio play in certain markets today.