The jet stream is a fast-moving current of air found high in the atmosphere that directly affects the weather all around the globe. This composition, rescored to be performed by bands with reduced instrumentation, portrays the various speeds and motions of these powerful air currents that have a major influence throughout the world. An opening series of festive fanfares introduces the arrival of this majestic force of nature, followed by the flowing melody that soars throughout - much like the fast-moving rivers of air that make up this irrepressible force of nature.