“Investigation…uncovers what is going on independent of any consciousness in the objects in question, while on the other hand it discovers in them new combinations and new functional possibilities which need to be set in motion in order to realize the teleologically posited goal.” pg 11-12 The Ontology of Social Labor 3. Labour by Lukács.
This to me sounds like the experimentation phase of improvisation.
Also had the thought that improvisation has no teleologically posited goal. Unless it is scored and that is the teleologically posited goal.