Totally agreed on the fact that the Dusko Goykovich inclusion is a little weird. He was never part of the Barcelona scene as such, apart from recording two discs for Ensayo on November 8 and 9, 1971: 'It's About Blues Time' as a quintet with Tete Montoliu on piano and Ferdinand Povel on tenor sax (from which 'Bosna Calling' is extracted), and 'Ten To Two Blues' as a quartet without Povel (this latter disc was subsequently reissued on Enja as 'After Hours').
In fact it was Tete Montoliu who joined Dusko's quintet some months before, touring over Europe, and particularly Germany and Yugoslavia, during the Summer and Autumn of 1971.
As for Pedro Iturralde, he made his first appearance in Barcelona on April 1968 at the Jamboree, and played several gigs in the Ciudad Condal over the years, but certainly he was part of the Madrid jazz scene (Whisky and Bourbon jazz clubs, mainly), not Barcelona's.