Mr.Sophy Keo has composed and arranged not only many songs but also music for film for the Royal Palace Film.
Besides, he has composed many pieces for piano, duo, trio, quartet chamber and symphony orchestra. Composed and arranged for traditional with western instruments.
Since 2017, he has been acting as vice dean of faculty of music Royal University of Fine Arts. He is endeavouring to revive traditional Cambodian music by cultivating enthusiastic and talented new artists.