capella 7 has evolved over 15 years to become a professional quality notation program at an affordable price. It has additional modules designed to work with it to scan music, create MP3 fiiles and automatically harmonize and compose canons and fugues.
capella can handle the largest orchestral scores.
Specialist notation such as tablature, fret diagrams and percussion are included. Chord descriptions are linked to the notation, changing with transposition.
Lyrics are automatically linked to notes and text can be entered either independent of the notation size or linked to it so that it scales when the stave size changes.
You can obtain a trial version from capellasoftware.com