Open Culture recently published an article about Musopen's collection of free recordings of performances of the works of more than 150 composers. You can stream the music from Musopen for free. You can also download five recordings per day for free from Musopen. The recordings could be useful in a music appreciation course. Looking at the Musopen collection prompted me to look at some other resources for teaching about classical music.

Keeping Score is a comprehensive website full of educational materials about composers, scores, musical techniques, and symphonies. There are two elements of Keeping Score that should be of particular interest to educators. The most immediately accessible section of Keeping Score is the interactive education elements that contain videos, images, and texts that tell the stories of composers. The interactive section also features explanations of musical techniques, the history of notable events and themes in the symphonic world, and analysis of various scores. The second section of Keeping Score that teachers will be drawn to is the lesson plan library. In the lesson plan library teachers will find lesson plans developed to incorporate elements of the Keeping Score website.

Classics for Kids, produced by Cincinnati Public Radio, offers lesson plans, podcasts, and games for teaching kids about classical music. The lesson plans are designed for use in K-5 settings. All of the lesson plans are available as PDFs. Activity sheets are also available as accompaniments to recordings of classical composers. In the games section of Classics for Kids students can develop their own compositions or practice identifying music and composers. As a reference for students, Classics for Kids offers a dictionary of music terms.