Rafael Anton Irisarri continues his string of post-minimalist releases with his third for Umor Rex: El Ferrocarril Desvaneciente. While composed as an ode to an overnight train journey through Spain he took many years ago, the music picks up sonically where his previous album Sirimiri left off. Irisarri focuses on deploying sonic cycles throughout these four shorter pieces, basing much of this sweeping ambience around looped sounds and distant pulses. The sound is however kept in a state of forward motion and constant evolution, invoking the slowly rumbling night train that inspired it —not to mention its cargo of misfits and travelers. Irisarri’s skill, set as a manipulator of minimal sound input, is at full strength here, imbuing even shorter pieces such as “El Espectro Electromagnético,” with chasms slowly cresting drama. The phantasmagoria of “Un Saltador” was even composed as a departure for him, toying with synths and pedals in a “modular kind of way,” letting an experiment unfold with minimal interaction.