Judith Hamann, James Rushford - Midmeste (LP+DL)

Their first project as a duo, 'Midmeste' is Aussie composer-performers and long time collaborators Judith Hamann and James Rushford's latest slow-mo meditation on musical history, psychoacoustic phenomena and minimalism, performed on cello and various pipe organs. Hamann and Rushford have been working together for years, most visibly alongside Sam Dunscombe as Golden Fur, a chamber ensemble the friends established back in 2008. Each artist has moved decisively in the time since: Berlin-based Hamann outdid herself on last year's intimate and deeply personal 'Aunes', while Rushford brought his various experiments to a focal point on 'Turzets', balancing his tongue-in-cheek electroacoustic experiments with bold medieval deconstructions. Working as a duo, the pair isolate the similarities in their respective musical signatures; the title is a Middle English word meaning "the middlemost point" and signals the album's creation, where they searched out creative overlaps: xenharmonic tunings, organology, psychoacoustics and unintentional sounds, just for starters. And knowing each other so well is also a boon. Where so much minimal avant-garde gear can sound stuffy to the point of being exclusionary, 'Midmeste' sounds inviting even at its most uncompromising. They use English early music composer John Dunstaple's 'O rosa bella' to anchor their experiments, returning to its core themes every time the album starts to veer too far off course. And there's a refreshing calmness to this technique; in the beginning, Hamann's piercing harmonics provide the edge, while Rushford's rounded organ chords welcome in a more familiar structure that Hamann respects with elegant cello tones. Interestingly, the duo were given the opportunity to record the world's oldest playable organ, a 15th century instrument at Basilica St Valere in Switzerland. Since they were both on residency at La Becque in Lake Geneva, it made perfect sense to document the organ's unique character and add it to their composition - contextually, it's right on point. Mid-way through the first side, we can hear its creaking, crackling wooden frame and whistling resonances, the puffing bellows and the sound of hands and feet on the instrument. It's these impeccably captured peripheral sounds that give us a sense of place, bolstering the duo's engagement with history with a tangible historical object that still tells us its age. Tones warble, wobble and boom through the centuries-old pipes and Hamann follows the course with her patient, literate responses that add romance, mystery and humanity to what, on its own, might be dry. So we end up with forty minutes of some of the most unashamedly beautiful music either artist has put their name to yet - 'Midmeste' is a duet that whisks you through time, physical space and tonality itself. Remarkable stuff.