Audio experimenters Alfredo Costa Monteiro and Miguel A. Garcia join forces in an album titled after "Aq'ab'al", the Mayan Astrology Sign about polar opposites--dawn and dusk, hot and cold, black and white--which represents renewal and change, through a series of opposing audio events, forceful sounds of texture, feedback, and intervention.

The results of years of collaboration between the Cremaster electroacoustic improvising duo of Ferran Fages and Alfredo Costa Monteiro with pianist Sophie Agnel, in a remarkable album of fragile yet rich tones and tonal punctuations, a feast of timbral possibilities.

An unusual release from the accordion, Alfredo Costa Monteiro, placed microphones in a way to enhance the harmonics and all the particularities of every sound, layering slowly moving tones and their harmonic interaction, allowing unexpected details to emerge.

Organized sound compositions using recordings from Monteiro's home environment, compositing acoustic sound without adding electronic effects processing.