Tangerine Leaves releases were based on material that did not meet the quality standards of the Tangerine Tree or from concerts that were not considered notable among a series of concerts. These recordings were professionally re-mastered and released on CD-R and accompanied by high quality artwork for the CD labels and case liners. Only recordings of a high quality and a unique nature were considered for the core Tangerine Tree volumes. Material was collected from audience recordings, soundboard recordings, recordings of radio and TV transmissions and in some cases the purchase of studio masters.
The project collected just under 300 hours of material (291:39:26). Several of the Tangerine Tree volumes have been used as the basis for official Tangerine Dream releases. The creators of the Tangerine Tree project received permission from Tangerine Dream to release the collection on a strict non-profit basis.
Tangerine Tree was a fan project operating from 2002 through 2006 with the goal of collecting, preserving and distributing unreleased concerts and other audio material by the band Tangerine Dream.
