Webster’s Revised Unabridged Dictionary · 1913
Composer
Com·pos′er (kŏm·pōz′ẽr), n. 1. One who composes; an author. Specifically, an author of a piece of music.
If the thoughts of such authors have nothing in them, they at least . . . show an honest industry and a good intention in the composer. Addison.
His [Mozart's] most brilliant and solid glory is founded upon his talents as a composer. Moore (Encyc. of Mus.).
2. One who, or that which, quiets or calms; one who adjusts a difference.
Sweet composers of the pensive soul. Gay.