Interaccion

Interaccion were a duo of Jose Iruretagoyena and Carmen L. Fernandez de Velasco active in Madrid throughout the mid-80es. They made two self released cassettes: 'Extension de los Significados', compling works from the period 1980-83, and 'Ancestrales', compiling works of the 1984-85 period as well as a video tape called 'Luc Ero Lucis et Umbrae'. [SOURCE. DISCOGS] 

[More info -in Spanish- on Grupos Nacionales Nueva Ola 80]