33 Portraits for Harmonium, Op. 101, No. 18: Vorspiel zu einem Drama (Alla Wagner)
Sigfrid's Unbeaten Tracks: Harmonium Music transcribed and played on the Link-Gaida Organ of St Pauluskirche, Ulm Graham Barber 7 August 2020
Sigfrid's Unbeaten Tracks: Harmonium Music transcribed and played on the Link-Gaida Organ of St Pauluskirche, Ulm Graham Barber 7 August 2020