- Andrea Chudak, Artashes Stamboltsyan, Sarah Stamboltsyan, Maria-Anja Hübenthal, Calliope Duo
- Sofia Philharmonic Orchestra, Dario Salvi, Martina Bortolotti von Haderburg, Daniel Schliewa, Noah Schaul, Robert Davidson
- Martina Bortolotti, Sofia Philharmonic Orchestra, Kirsten C. Kunkle, Dario Salvi, Robert Davidson
