Canadian progressive rock-band Hamadryad first happened in 1995. The name identifies a kind of real wood nymph in tale. The lineup of the group can be Jean-François Désilets (bass), Denis Jalbert (acoustic guitar), Yves Jalbert (drums), Jocelyn Beaulieu (vocals and acoustic guitar), and Francis Doucet (keyboards). The group offers one album so far, 2000’s Conservation of Mass.