The main goal of Finale is to produce sheet music of high quality. While front matter section of sheet music publication can be authored in DTP software, there are many cases for professional typography on the pages with sheet music authored in Finale. Examples are the following OpenType features:
- Small Capitals [smcp] and Small Capitals From Capitals [c2sc] for composer, arranger, text author names;
- Discretionary Ligatures [dlig] and Stylistic Alternates [salt] for piece titles;
- Localized Forms [locl] for text expressions in non-English languages;
- Subscript [subs], Superscript [sups], Fractions [frac], Scientific Inferiors [sinf], Ordinals [ordn], etc. for technical instructions and footnotes.
For some of these features there is (not so convenient) workaround of pasting the glyphs from character map utility, but often the glyphs needed are provided only as part of OpenType glyph substitution features and are not available in character map utilities (and copy-pasting from other application also does not work in the case of glyph substitution).
For more info see OpenType specification.