Sheet Music
Licensed
Classical Scores Library
Music prints, music manuscripts and copyright protected editions mainly of British origin from the 15th to the 20th century
Henle Library App
Access to the digital sheet music (practical performance material/scores) of the Henle publishing house
Open Source
IMSLP International Music Score Library Project “Petrucci Music Library”
Collection of digital copies of public domain music prints, database linked to Naxos Music Library