metronome in mobile phone

Op 111 Productions AB - Innovative Solutions for Musicians

Op 111 Productions develops and provides IT solutions and services for musicians.
Current projects include Piano Street (, a discussion board (formerly Piano Forum) and sheet music resource for professional pianists, piano teachers and piano students.
Other products include Metronome, Music Dictionary and Pulse Meter software for legacy mobile phones.

Latest news:
16 April 2024:
New single release: "Dark Maze (live)" with Örjan Hultén and Adam Forkelid.