Musical orchestration is an empirical art form based on tradition and heritage whose lack of formalism hinders the development of assisstive computational tools. Computer-aided musical orchestration (CAMO) systems aim to assist the composer in several steps of the orchestration procedure. Particularly, imitative CAMO focuses on instrumentation by aiding the composer in creating timbral mixtures as instrument combinations. Imitative CAMO allows composers to specify a reference sound and replicate it with a predetermined orchestra