▁strict ▁non - pro fit ▁basis . ▁Several ▁of ▁the ▁T anger ine ▁Tree ▁volumes ▁have ▁been ▁used ▁as ▁the ▁basis ▁for ▁official ▁T anger ine ▁Dream ▁releases . ▁The ▁project ▁collected ▁just ▁under ▁ 3 0 0 ▁hours ▁of ▁material ▁( 2 9 1 : 3 9 : 2 6 ). ▁ ▁Material ▁was ▁collected ▁from ▁audience ▁record ings , ▁sound board ▁record ings , ▁record ings ▁of ▁radio ▁and ▁TV ▁transm issions ▁and ▁in ▁some ▁cases ▁the ▁purchase ▁of ▁studio ▁master s . ▁Only ▁record ings ▁of ▁a ▁high ▁quality ▁and ▁a ▁unique ▁nature ▁were ▁considered ▁for ▁the ▁core ▁T anger ine ▁Tree ▁volumes . ▁These ▁record ings ▁were ▁profession ally ▁re - master ed ▁and ▁released ▁on ▁CD - R ▁and ▁accompanied ▁by ▁high ▁quality ▁art work ▁for ▁the ▁CD ▁labels ▁and ▁case ▁lin ers . ▁ ▁T anger ine ▁Le aves ▁releases ▁were ▁based ▁on ▁material ▁that ▁did ▁not ▁meet ▁the ▁quality ▁standards ▁of ▁the ▁T anger ine ▁Tree ▁or ▁from ▁concert s ▁that ▁were ▁not ▁considered ▁notable ▁among ▁a ▁series ▁of ▁concert s . ▁If ▁a ▁better ▁source ▁was ▁found , ▁a ▁T anger ine ▁Le aves ▁volume ▁might ▁have ▁been ▁deprecated ▁and ▁replaced ▁by ▁a ▁T anger ine ▁Tree ▁volume . ▁Starting ▁from ▁ 1 9 8 0 , ▁the ▁music ▁played ▁during ▁each ▁of ▁the ▁shows ▁in ▁a ▁single ▁T anger ine ▁Dream ▁concert ▁tour ▁were ▁very ▁similar , ▁so ▁it ▁was ▁imp ract ical ▁to ▁release ▁many ▁volumes ▁of ▁the ▁T anger ine ▁Tree ▁with