In a calm morning in March 1968, a shipment carrying the latest Korgs, Moogs and Hammond organs set off from Baltimore harbour, heading for an exhibition in Rio de Janeiro. The sea was steady, the containers safely attached. And yet later that same day, the ship would inexplicably vanish.

A few months later, it finally reappeared. Somehow, the ship had been marooned on the São Nicolau island of Cabo Verde (now Cape Verde, but then a Portuguese territory 350 miles off the west coast of Africa). The crew were nowhere to be seen and the cargo was commandeered by local police. But when it was found to contain hundreds upon hundreds of keyboards and synths, an anti-colonial leader called Amílcar Cabral declared the instruments should be distributed equally among the archipelago’s schools.

Overnight, a whole generation of young Cabo Verdeans gained free access to cutting-edge music gear. According to Frankfurt-based rarities label Analog Africa, this bizarre turn of fate can be directly credited with inspiring the island’s explosion of newly electrified sounds following independence in 1975, and has now been documented on its on its latest compilation, Space Echo – The Mystery Behind The Cosmic Sound Of Cabo Verde.