Jon Nelson recorded Stephen Barber's 'Gran Calavera Electrica' (Barber's Frank Zappa tribute) on his album with the same name. The album was produced by Jon Nelson and Stephen Barber.
gran calavera electrica
(200?, cd, usa, sunken gong records jn 0102) - incl. 'gran calavera electrica' (s.barber's tribute to frank zappa)