4 similar diminished chords with different resolutions – in 53 tone tuning.
Excerpt from first testing session "Arciorgano in contemporary music", studio31 and composition department of Musik Akademie Basel, dir. Caspar Johannes Walter and Johannes Keller, Basel, March 22nd to 24th, 2017.
Johannes Keller and Eva-Maria Hamberger, “Supercembalo” (31-tone Clavemusicum on top of a 24-tone Cimbalo Cromatico)
