For the first time, a representative anthology of Eduardo Polonio's early electroacoustic works is available in vinyl format. This compilation also serves as a review of the history of Spanish electroacoustic music, featuring works created at the Phonos Laboratory in Barcelona, the Alea Electronic Music Laboratory in Madrid, the Electroacoustic Music Cabinet in Cuenca, and the composer's private studio in Barcelona. The anthology Eduardo Polonio: Obra electroacústica 1969-1981 revives the early stages of the innovative composer with a curated selection of eight restored pieces. A limited edition celebrating his profound impact on Spanish experimental music. Eduardo Polonio (1941 - 2024) was one of the foundational figures in the emergence and development of electroacoustic music in Spain. From the raw electronic textures of "Para una pequeña margarita ronca" (1969) to the timbral subtleties of "Flautas, voces, animales, pájaros" (1981), this collection showcases Polonio's artistic evolution and highlights different facets of his work as a composer and musician. The included works reflect this multifaceted aesthetic. "Oficio" (1969) is a real-time improvisation recorded using two low-frequency generators and a modified electric guitar amplifier for sound modulation. Rabelaisiennes (1969), for prepared guitar, explores minimalism and instrumental experimentation. "Continuo" (1970), a piece for electric guitar and bass, anticipates ambient music while engaging with free jazz and psychedelia. "Me voy a tomar el Orient Express" (1976) stands out for its rhythmic and harmonic interplay between the lines forming the sonic texture. "Valverde" (1981) offers a microscopic study of a distinctive way flamenco guitar concludes bulerías phrases. "El reclinatorio en el tejado de la lejana abadía" (1971) is structured as an imaginary soundscape in the form of a suite. Polonio's life and work parallel the history of electroacoustic music in Spain. From his beginnings at Alea, Spain's first electronic music laboratory, to his collaborations with figures like Horacio Vaggione and Josep Maria Mestres Quadreny at Phonos, Polonio carved a unique path in the history of Spanish experimental music. Eduardo Polonio: Obra electroacústica 1969-1981 is presented by Buh Records as a limited double LP edition and in digital format, in collaboration with the Asociación de Música Electroacústica de España (AMEE). The audio in this edition has been restored and mastered directly from the master tapes by Víctor Aguado. The album includes extensive liner notes written by Víctor Aguado and Ramón del Buey, with artwork and design by Gonzalo de Montreuil.