You do! Alexander Street Press’s Classical Scores Library can be found through the Music Library website (under Audio, Video & Scores Online).
This resource contains over 1.3 million printable pages of music composed in time periods ranging from the Middle Ages to the 21st Century. More than 4,600 composers are included: from Machaut, Mozart, and Tchaikovsky to contemporary artists such as Kaija Saariaho, Peter Maxwell-Davies, and John Taverner. All of this is available 24-7 and is just a click away.