The recordings of Cage's indeterminate works such as Variations I, Fontana mix, Cartridge music, Variations II, and Variations III reveal certain traditions in their performance, in both form and style.
Lochhead, Judith Irene
"Performance Practice in the Indeterminate Works of John Cage,"
Performance Practice Review:
2, Article 11.
Available at: http://scholarship.claremont.edu/ppr/vol7/iss2/11