A great collection of early '70s music by this noteworthy trio from Canada, combining chamber pop with electroninc experiments. Included are the tracks from the utterly adventurous albums 'Syrinx' (1970) and 'Long Lost Relatives' (1971), two works that endorsed the poetic potential of the avant-garde, subverting a turn of the '60s trend toward technological pageantry. 'Tumblers From The Vault' also contains previously unissued music, revisiting the Syrinx story and sharing the group's memorable, mind-bending melodies.