Here is an unofficial supplement to the Standard of Excellence Music Theory & History Workbook (Book 1). Click the links in the corresponding time period to listen to (or watch) pieces from that era.
Here is a Spotify playlist to unofficially complement the Standard of Excellence Music Theory & History Workbook (Book 1). There are Spotify playlists linked under some of the time periods if you wish to listen to more examples (you do not need to listen to all of the pieces on the playlists, just as many as you want!).