Mostly it's the sound of the 1/4 tone guitar out front with percussion and vocal at times and some pre-recorded electronics on the piece by Torvund. The "Sinfonia Mincrotonalis No. 1" appears to feature multiply tracked guitars.
Throughout you must adjust to the world of quarter-tones in a new music context. That perhaps is a challenge sometimes, especially when they ring out scalularly, less so when a part of sound matrices.
The works are concentrated, focused, played remarkably well by Forisdal, with the small ensemble pieces executed with precision and some grace.
It is music to grow slowly into, more so than something you embrace right at the start.
It will appeal to those souls with a real sense of adventure, students of ultra-modern guitar literature and avant fans. For others it will take some doing to get used to.
An adventure for the intrepid explorer!