Sonda Musica, Madrid 1967-1972

(1) Collection of invitation cards for concerts and performances in original mailed envelopes. All stunning typography on brightly coloured paper. Features a white envelope with 12 cards and 1 flyer from November 1967 to April 1970. (2) Blue envelope with 3 cards from February to March 1969, featuring Grupo Koan amongst others.

(3) Blue envelope with 5 cards from 1971/ 1972, includes an invite for an audiovisual project by Jacobo Romano. The Sonda programme was a series of new music concerts organised by Tomás Marco and Ramón Barce who were founding members of the Grupo Nueva Música (1958) and of Zaj (1964–6), an experimental music and performance art group. Envelopes feature age wear, cards are near mint. (total 3)