"Family Tree" Recital?

Thinking about programming a song recital for the fall and wondering where to begin?  If you haven't got a particular theme in mind, why not consider a "family tree" recital: showcasing several sets by composers and their disciples? Songs by Boulanger and Aaron Copeland? Sounds like fun! Find some other potential combos on this recent piece on WQXR's series, Q2 Music. Any interesting student-teacher recital ideas to share?