@article{Potter_1980, title={Free Improvisation — A Review}, url={https://journals.gold.ac.uk/index.php/contactjournal/article/view/contactjournal21_p18-23}, DOI={10.25602/GOLD.cj.v0i21.1151}, abstractNote={<p> </p> <p> </p>}, number={21}, journal={Contact: A Journal for Contemporary Music (1971-1990)}, author={Potter, Keith}, year={1980}, month={Sep.} }