Where can you find abandoned sheet music?

In old pianos. Many people used to own pianos, but they have since fallen out of favor. As a result, many pianos have been abandoned, and the sheet music that was once used to play them has been left behind.

In thrift stores and antique shops. Thrift stores and antique shops often sell old sheet music. This is because many people no longer want their old sheet music, and they donate it to thrift stores or sell it to antique shops.

Online. There are a number of websites that sell old sheet music. This is a great option if you are looking for a specific piece of sheet music.

In libraries. Some libraries have collections of old sheet music. This is a great option if you want to browse through a variety of sheet music and find something that you like.