Contrasting motion and static notes, Portuguese sound artist living in Barcelona, Alfredo Costa Monteiro uses a combination of two wind instruments--accordion and melodica--and the harmonic differences between their natural textures to create beautiful ebbs and swells of consonance and dissonance, applying feedback tuned to one or the other instrument to create subtle beat frequencies.

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.

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.

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.

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.

Limited edition CDR from AT's Byways series, a stunning piece for solo cymbal, demonstrating an extraordinary variety and musicality from such limited means.