The 9th 4Seasons Vienna International Musician Competition – Summer Edition is an online competition open to musicians of all nationalities. Application fee: €25 International classical music competition for *KEYS (Piano, Accordion, Organ) *STRINGS (violin, viola, cello, double-bass, harp, guitar) *WINDS (flute, clarinet, oboe, bassoon, saxophone, french horn, trumpet, trombone, tuba, euphonium) *VOICE (all voice types) *PERCUSSION *CHAMBER MUSIC *COMPOSITION * Three main prizes (1st, 2nd and 3rd place) * Special prizes ( Wiener Klassik Prize, Jury Special Prizes) and Honorable Mentions Prizes will be awarded. * Grand Prix Prize: The winner receives a live performance opportunity at Mozarthaus Vienna, along with an audio and video recording of the performance. * The composition must be written for a solo, duo, trio, quartet, or quintet. Application fee: €25 Submission deadline: August 24, 2025 Results announcement: August 31, 2025