Amid rusted transistors and owner manuals blurred by dust, Rogelio Serrano rescued abandoned vintage synthesizers from Mexico City's flea markets. These devices, revived by a Japanese technician based in the capital, returned to life with electric pulses, becoming accomplices in nearly clandestine recording sessions at a solitary, remote location called "Ojo de Agua" on the city's outskirts. Sound Cartography is a sonic archive of tracks recorded between 2017 and 2019, which could easily be considered demo pieces, unfinished works, or simply orphaned creations.