There's a curious story behind that disc.
Tete, Peer and Eric were scheduled to record a disc of Catalonian folksongs and Joan Manuel Serrat originals (which was finally called "Tete Montoliu Interpreta a Serrat"), but at the end of the evening, neither Eric nor Peer had arrived due to their engagement with another group at the Whisky Jazz club in Madrid. So Tete locked himself at the studio (Estudios Celada, Alcorcón, small town near Madrid) and played, almost without interruption, the first eight tracks. When Peer and Eric arrived, well passed midnight, they finished the disc with two traditional Catalonian songs. As they had time enough at the studio, they went into this ad lib improvisation that ended up as one of the most "out" (if that is possible with the always straight-ahead Tete) discs of his career.
Thanks!!! And Son-of-a-Weizen, I'm happy the file came up at a good time, and best of luck with your project. Barry