For their 1976 series of collaborative works executed in Cadaqués and titled the Collaborations of Ch. Rotham, Dieter Roth and Richard Hamilton recorded Canciones de Cadaqués, a double 7” 45 rpm vinyl record. The record is carried out the same way as the series of paintings and thus consists of an original (Barks from Cadaqués) and a certificate (Hundelieder). On the original both artists alternately perform the vocals and accompaniment on guitar, while on the certificate Chispas Luís, a Cadaqués dog noted for his bark, contributed the vocals to guitar backing by either Hamilton or Roth.