Evolving Indirectly Represented Melodies with Corpus-Based Fitness Evaluation	Jacek Wolkowicz ⁄ Malcolm Heywood ⁄ Vlado Keselj	Music Generation ⁄ Unigrams ⁄ MIDI ⁄ Generational Genetic Algorithms ⁄ Steady-State Genetic Algorithms ⁄ Automatic Fitness Assignment	2009