Some Zappa's statements translated from Musicians Only, January 26, 1980.

Source: adt.arcanum.com

The foreword of the Alain Dister's book Frank Zappa et les Mothers of Invention translated by Péter Tardos.

Source: adt.arcanum.com

[1] Article on "second generation" - Julian Lennon, Moon Zappa etc. 

[2] Automatic translation: Pop music has found itself in catastrophic economic conditions. The most important record labels, CBS, Warner and Columbia, are in crisis. It's also a fact that business is also extremely bad for those at the top of the hit list - Genesis, Chicago, Frank Zappa, Clash, Elton John, Blondie. it is a competitive maneuver, as confirmed by the New York Times, which is far from being read by a pop audience. The newspaper's respected music critic wrote in mid-August: "We have reached the end of an era." The explanation is remarkable. Those who didn't buy the not-at-all-cheap discs and cassettes are now spending their money on much more interesting video games instead. If they want to get their hands on the latest recording of their favorites, they can get it really cheap at the mushrooming record rental companies. And today's hi-fi technology is already capable of a perfect copy. The circle is closed. At least from a business perspective.

Source: adt.arcanum.com

Automatic translation: One of the apostles of rock music, the American Frank Zappa, is hardly known in our country. The rock books and encyclopedias deal with him, but we could not see or hear him live, and his records rarely reach us. Back home, he was labeled a "rock freak", and there were sporadic news and rumors about his eccentric behavior. The picture is more accurate if we say that Oh the Great Renewal. After several days of searching and calling in London, we managed to arrange a meeting with him through an agency. The interview took place at his hotel in Pentonville during his European concert tour. Previously, he had stipulated that we could not make a picture or sound recording of him, and as a dedication, he only engraved his name in stringy letters on two album covers. (read more)

Source: adt.arcanum.com