Music for piano solo (2017-2019) by Caspar Rene Hirschfeld (*1965) was premiered by Joshua Rupley in 2023 and deals with transience or the emergence, change and decay of all phenomena. In addition to a virtuoso technique, the work also requires a highly developed sense of sound in the quietest registers and the courage to remain completely calm in the quiet passages. Album Tracks 1. Music for piano solo, Op. 139~Außerst langsam 2. Music for piano solo, Op. 139~Attacca Breit, aber mit Nachdruck 3. Music for piano solo, Op. 139~Attacca Sehr bewegt, drängend 4. Music for piano solo, Op. 139~Freudvoll, mit Glanz 5. Music for piano solo, Op. 139~Sanglich 6. Music for piano solo, Op. 139~Klar, quasi sprechend 7. Music for piano solo, Op. 139~Attacca Offen, mit Weite