MuseScore is a free, open-source music notation program that provides an alternative to Finale and Sibelius. It enables you to “play” scores. You can download MuseScore for free here. >Useful links to the online handbook:

• Mixer
  • adjusting the volume of each vocal or instrumental part
  • panning each part between the left and right channels
  • changing the sound used to play each part
• Play mode
  • adjusting the tempo and overall volume
  • using the metronome
  • looping the playback of a selected passage
• Language settings and translation updates