Like paths and alleys overgrown with hardy, rank-growing weeds, the words we use are overgrown with our individual, private, provincial associations, which tend to choke the meaning.

Experiment - exercising to see the result. We planned Europa not as an experiment in this sense but as a work of art. Yet The Eye and the Ear was done as a consciously designed experiment. Not every avant-garde dealt with experiments and not every experiment equalled avant-garde.