How do you associate "Notes" to many models?

I'm trying to find the best way to associate notes to many models. I
have a table called notes, and the tables I wanted associated to those
notes are:

players
teams
parents

To accomplish it, would my notes database column just have the
following:

Note

Does a note need to be associated with only one of the 3 tables for
each instance? If yes, take a look at has_many_polymorphs.

http://m.onkey.org/2007/8/14/excuse-me-wtf-is-polymorphs
http://blog.evanweaver.com/files/doc/fauna/has_many_polymorphs/files/README.html