SightReadingFactory.com allows you to optionally add Solfege syllables to your music. To do this:

  1. Generate some music that you'd like to add Solfege to.
  2. Click the gear icon on the top right of the toolbar
  3.  Check the 'Use Annotations' box
  4. Use the 'Annotations' dropdown to select the solfege system you'd like to use.
  5. Generate some new music for the Solfege to appear.
  6. You can use the 'a' hotkey to toggle the annotations (Solfege) on and off.