Reflujo (Reflux) is a sound reflection about the inevitable interconnection of feelings, emotions and thoughts of people when perceive, think and explain our environment through an organ, the brain, which is in turn another set of interconnections. Perceived the inevitable contrasts between nature and culture (Kultur), with the city as the prime example, between old and new, as well as the influences between them are presented by a swinging of field recordings made in the cities of Merida and Badajoz, situated in the region of Extremadura (Spain) and its surroundings and its historic remains. The sound of the train is presented as a metaphor for the human explanation of the environment (as seen from the point of epistemological constructivism: the man as a meaning constructor) the thread of constant perceptual buzz shows the context. On the other hand all the sounds were slightly manipulated to accentuate the idea of human action on the environment, especially with echoes and reverberations, the echoes seen as the human capacity to retain information and reverb as a representation of the human capacity to create alternative spaces (open or closed) to those existing in nature. On the other hand, there is a natural and historical dimension to the sound samples by their temporary presence in the play, the sounds of nature are present throughout the work (reflecting the spatial and temporal supremacy of natural space, and a call to reflect on its importance as a basis of everything else), the recordings of historic sites come and go over the work (as an example of the relativity and impermanence of every historical moment) and finally technological samples (cars, telephones, etc..) and cultural (folk, contemporary music) are so short center, reflecting its temporary nature. Finally, we tried to get the quality of the recordings were not very good to reflect the idea of human perception and imperfect mechanism.

The following audio samples were used:
• Merida Roman Circus
• Rio Guadiana passing through Mérida
• Roman Proserpina Reservoir
• Old town of Badajoz
• Guided tour of the old town of Badajoz
• Deer
• Train ride Mérida-Badajoz
• Manipulated traditional folklore Group
• Composition of the author’s own (as a metaphor for his own intervention in the environment)

Jorge Marredo Rosa was born in Badajoz (Spain) in 1977. He has a degree in psychology and has studied social and cultural anthropology. Self-taught, his work is equally influenced by minimalism, experimental electronic, classical avant-garde, field recordings, radio work, improvised music and traditional folklore of Extremadura.