First compilation that brings together early electronic works by Peruvian composers. Features works produced in international laboratories of prestigious centers such as the Instituto Di Tella, Columbia-Princeton, and the Royal College of Music. A unique aspect is the exploration between native instruments and electronic music. This compilation offers a first overview of the early works of electronic and tape music created by Peruvians composers between 1964 and 1984. This period marks a technical and aesthetic evolution that allows us to understand the development of electronic music in the Peruvian context, from an initially internationalist model to a more situated one. The first phase occurs in the 1960s, when many composers migrated outside Peru in search of advanced training and access to knowledge and infrastructure that the academic music scene in Peru could not provide. During these specialization trips, Peruvian composers gained access to the languages of the international avant-garde of the post-war period. César Bolaños traveled to Argentina, to the Centro Latinoamericano de Altos Estudios Musicales (CLAEM) at the Instituto Di Tella, where he produced an extensive body of work, including "Intensidad y Altura" (1964) for magnetic tape, the first electronic work produced in the CLAEM electronic music laboratory. Similarly, Edgar Valcárcel was a CLAEM fellow and also spent time at the Columbia-Princeton Electronic Music Center in New York, where he composed, among other works, "Invención" (1967) for magnetic tape. Enrique Pinilla also passed through there, composing "Prisma" (1967) for magnetic tape. Alejandro Núñez Allauca was another CLAEM fellow, where he composed "Gravitación Humana" (1970). However, several Peruvian composers faced the dilemma of how to continue these sonic explorations locally without relying solely on specialization trips to access the infrastructure of major international laboratories. Due to the inability to establish a laboratory for electronic music production in Peru during these early decades, given the weak institutional framework of the academic music circuit and the absence of budget allocations for the National Conservatory, it was rather private initiatives in recording studios that paved the way for the sustained production of experimental pieces with electronic setups and media, largely oriented towards the production of music for film and dance. This was accompanied by a notable interest in utilizing the sounds of native Peruvian instruments. This also marked a shift from an internationalist model of electroacoustic music towards an openness to other types of sonic experimentation Composers such as Arturo Ruiz del Pozo, Luis David Aguilar, and Corina Bartra belong to this new period, which also marks the emergence of an initial scene of experimental music and free improvisation. Ruiz del Pozo pursued a Master's in Electronic and Film Music at the Royal College of Music in London, where he composed "Selvynas" (1978), part of his series "Composiciones Nativas," concrete music pieces based on native Peruvian instruments. Upon returning to Lima, he continued producing music for films using electronic sounds and setups. Luis David Aguilar also became involved in music for film and television, composing, among other works, "Hombres de viento" (1978), the soundtrack for José Antonio Portugal's film, which mixes native and Western instruments amplified and processed electronically. He would be one of the first to have a private recording studio. Corina Bartra, after being part of various improvisation ensembles alongside musicians such as Ruiz del Pozo and Aguilar, traveled to London where she took courses in composition and electronic music, composing the mixed work "Aves en vuelo al sur" for voice, instruments, and tape in a private studio. Sonic Transits: Electronic and Tape Music by Peruvian Composers (1964-1984) is part of the Essential Sounds Collection series produced by Buh Records for Centro del Sonido, a website set up as a digital archive of Peruvian experimental music and sound art. The compilation has been curated by Luis Alvarado and is published in a limited edition of 300 copies in double vinyl format. It includes extensive notes and visual documentation. Mastered by Alberto Cendra. Art and design by Gonzalo de Montreuil.