'The entertainer' is a well-known piece by Scott Joplin. It is a sample of ragtime music. There are several repeats in this piece. For example Section A is repeated 4 times. Follow the animated score for assistance. The semi-circle with a dot at the end of each section means the pause or hold the note longer. 'Rallentando' means to slow down. The zig zag means to shake the instrument or play it rapidly.