Trial is an album by Ost, released in 2017. The album is a Limited Edition original soundtrack LP.

• A1 Adagio D'Albinoni
• A2 Air Sentimental
• A3 Ouverture D'Operette
• A4 Adagio Slow
• A5 Sentimental Slow
• A6 Ambiance Kafka
• B1 Jazz Sur L'Adagio D'Albinoni
• B2 Jazz Hallucination
• B3 Diabolic K
• B4 Concerto A Cinque, Opus 5, N. 12
• B5 Adagio D'Albinoni, A L'Orgue Baroque