.SMN file extension

This is the basic program to work with .SMN extension

Finale Viewer

Finale Viewer Finale Viewer File

Finale Viewer is a free program that lets you view, play, transpose and print digital music sheets created in Finale and sold online by participating publishers. You can play and stop a song, change the tempo of the song, the key and the volume and choose the starting measure for playback... (more)

The program works with the following extensions: mus, smn