Tips, Tricks & Piano Playin' Resources

In the play The Piano Lesson by August Wilson what doesn't the piano represent to the different characters?

I need to know what the piano means to Berneice, Boy Willie, Doaker and Wining Boy. Also what kind of symbols does the piano represent?

These are all good sources

Piano – the past, literally teach about the past family and what lessons can be acquired

Berniece invokes pain towards the piano because it reminds her about her master and his family.

Boy Willie believes the piano is junk and would rather receive profit from its memory