<P> In 1995, Gerrard recorded and released her first solo album, The Mirror Pool . After the release of this album, she continued to work with Dead Can Dance, releasing the album, Spiritchaser, in 1996 . Following this, in 1998 she recorded Duality in collaboration with Pieter Bourke . This album would mark the beginning of an extensive collaboration for a number of film scores, including The Insider and Ali . Gerrard began a new collaboration with Patrick Cassidy in 2004 with the release of Immortal Memory . Again, this collaboration was furthered in film work, including Salem's Lot . </P> <P> The following year in 2005, Gerrard contributed to the Ashes and Snow Soundtrack . For the songs "Womb" and "Wisdom", she and Patrick Cassidy wrote and performed together . Her collaboration with Cassidy extended to include work with conductor Julie Rogers on the songs "Devota" and "Vespers". </P> <P> In 2006, Sanctuary, a documentary about the life and work of Gerrard, was recorded and released in September . It is the work of producer and director Clive Collier and features extensive interviews with Gerrard and various people who have collaborated with her in the past, including Michael Mann, Russell Crowe, Hans Zimmer and Niki Caro . The documentary was released on DVD by Milan Entertainment on 24 April 2007 . </P> <P> Also in 2006, Gerrard released her second solo album, The Silver Tree . This album was markedly different from her previous work and was also her first album released outside 4AD Records . The album was first released on iTunes, with a wider physical release planned at a future date . The album was nominated for the Australian Music Prize for 2006 . In 2007 a retrospective album The Best of Lisa Gerrard, a compilation of fifteen songs, was released covering her career in Dead Can Dance, solo work, and film work . </P>

Who sings now we are free from gladiator