Magda is a programming language introduced in Jarek Kusmierek's PhD (http://www.mimuw.edu.pl/~jdk/mixiny.pdf) and continued in Mauro Mulatero's thesis (http://www.tesionline.it/default/tesi.asp?idt=45612).
Magda's goal is to allow a programmer to write well-modularized, reusable code.
Magda is based upon the core notion of mixin as the only unit of reuse.