Three Souls in My Mind was originally composed of Alejandro Lora on bass and lead vocals, Ernesto de Leon on lead guitar, and Carlos Hauptvogel on the drums. On some albums they are accompanied by Arturo Labastida on saxophone and Carlos Martinez on trumpet. Sergio Mancera also played guitar on some albums. They released 15 albums on the RAFF record label before officially changing their name and lineup in 1985.

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