A tropical rainforest is an ecosystem type that occurs roughly within the latitudes 28 degrees north or south of the equator (in the equatorial zone between the Tropic of Cancer and Tropic of Capricorn). This ecosystem experiences high average temperatures and a significant amount of rainfall. Rainforests can be found in Asia, Australia, Africa, South America, Central America, Mexico and on many of the Pacific, Caribbean, and Indian Ocean islands. Within the World Wildlife Fund's biome classification, tropical rainforests are thought to be a type of tropical wet forest (or tropical moist broadleaf forest) and may also be referred to as lowland equatorial evergreen rainforest.

Tropical rainforests can be characterized in two words: warm and wet. Mean monthly temperatures exceed 18 °C (64 °F) during all months of the year. Average annual rainfall is no less than 168 cm (66 in) and can exceed 1,000 cm (390 in) although it typically lies between 175 cm (69 in) and 200 cm (79 in). This high level of precipitation often results in poor soils due to leaching of soluble nutrients.

Michael Stearns (born 1948) is a United States musician and composer of ambient music. He is also known as a film composer, sound designer and soundtrack producer for large format films, theatrical films, documentaries, commercials, and themed attractions.

Grown in Tucson, Arizona, Michael Stearns started practicing guitar at 13. At 16, he played in a surf music band, sometimes backing artists such as The Lovin' Spoonful and Paul Revere & the Raiders. Evolving to acid rock, he began composing music on multiple instruments in 1968 and, while in university and in the Air Force, spent a few years studying electronic music synthesis, the physics of musical instruments, and accumulating equipment (musical instruments, tape recorders...) for his first studio.

The studio opened in Tucson, Arizona in 1972 where he produced jingles and commercials for local radio and television, and nationally released jingles for Schlitz Beer and Greyhound Bus Lines. Stearns's interest in experimental "space" music though left him unsatisfied, as he found no audience to play his musical ideas, which could be at this time only related to the drug experience. After three years, Michael Stearns underwent a spiritual crisis and thought about stopping music.