Classical Piano Database

The Pianopedia site boasts data for 861 composers, 49 countries, over 5,100 works, and over 14,700 movements or excerpts. You can search by composer, nationality, title or even key and mode. Along with the basic information about the composition, it provides one more vital piece of information on many-- not all--of them. Where the music can be purchased. Great site for piano teachers, students, and performers.