music

For the phenomenon of music is nothing other than a phenomenon of speculation. There is nothing in this expression that should frighten you. It simply presupposes that the basis of musical creation is a preliminary feeling out, a will moving first in an abstract realm with the object of giving shape to something concrete. The elements at which this speculation necessarily aims are those of sound and time. Music is inconceivable apart from those two elements.

-- Igor Stravinsky Poetics of Music
Translated by Arthur Knodel and Ingolf Dahl