Francisco Lopez is one of the leading artists in electro-acoustic music in the 1990s. From a background in biology and ecology, he has created a singular and focused musical style centered around immersive sonic environments which are intended to strengthen and enhance the user's listening capabilities. His live performances are often performed in complete darkness and he has also been known to distribute blindfolds to the audience in order to reduce the visual impact of the performance, requiring the listener to concentrate more fully on the music itself. Although many of his pieces are based on drones in one way or another, the dynamics range from very loud to nearly inaudible. A prolific artist with over 100 releases on cassette, vinyl, and CD starting from the early '80s, Lopez continues to work the concept of "sound object" (objet sonore) described by musique concrete creator Pierre Schaefer in the 1960s. Although his most famous work, La Selva, shares a clearly recognizable framework with other soundscape artists like Eric LaCasa and Douglas Quin, Lopez has distanced himself from the soundscape as a concept based on R. Murray Schafer's book The Tuning of the World and the acoustic ecology movement that followed it.