Monte Espina, electroacoustic free improvisation duo, consists of Ernesto Montiel and Miguel Espinel, both Venezuelan-born and North Texas-based. The pair perform in tandem, exploring the possibilities of sinuous sonic environments amid amplified sounds and signal processing. "Pa" is Monte Espina's second proper album, following 2019's outstanding "y culebra" (Marginal Frequency). In many respects, this is a seamless continuation of the timbres and atmospheres uncovered in that first effort, b…