Mountain Australian Chamber Orchestra ABC Classics Mountain is a film that interweaves the filmmaking of Jennifer Peedom, texts by Robert Macfarlane narrated by William Dafoe (not included on the album) and music chosen or written by Richard Tognetti for the ACO. Like Kubrick’s use of music in 2001: A Space Odyssey, it’s a strange and incongruous mix. Doubtless it makes more sense in the concert hall or cinema (the movie’s national release date is September 21), and I have yet to experience anything more than the album. Eight of its 20 tracks are credited to Tognetti, with influences ranging from Bartok to the film music of Hans Zimmer. Along the way, there are short selections from Peter Sculthorpe (a bizarre version of the ubiquitous Djilile arranged for piano and strings) and Arvo Part, including a thrilling reading of the now familiar Fratres. There are healthy stretches of supercharged Vivaldi and ethereal Beethoven, the slow movements of the Violin Concerto caressed by Tognetti, and the Emperor concerto, nursed with affecting poise by Tamara-Anna Cislowska. The juxtapositions are a bit of a jolt, a minor quibble that could yet be adjusted by reordering the items. The performances adhere to the stratospheric standards we expect from the ACO; they are uniformly high-octane, arresting, never ordinary. Despite the unusual selections and their ordering, this album will perpetuate memories of an outstanding film experience. If it encourages audiences to seek out more music by Part and his contemporaries, so much the better. If it encourages Tognetti to pursue further collaborations with filmmakers and the like, there will be no shortage of ACO marvels.