The vital center of The Tempest is its music. Pervading and informing the action of the play, music is always sounding, always affecting and shaping the lives of the characters. Often directionless and ambiguous in its meaning, the music of The Tempest provides a context for Prospero's magical machinations and becomes, through the course of the play, a powerfully evocative symbol of this magic. In The Tempest music is the medium through which order emerges from chaos; it is the agent of suffering, learning, growth, and freedom.
Critics who have noted the pervasiveness of music, songs, and musical allusions in Shakespeare's drama1 have often attempted to extrapolate from the canon of his work and posit a distinct philosophy of music which they insist he was trying to communicate in his plays. This is most easily accomplished by rather vague references to Renaissance ideas of divine harmony and the "music of the spheres," that macrocosmic heavenly order of which this worldly microcosm was thought to be a reflection. It has also been pointed out that during the Renaissance, music came more and more to be associated with a "rhetoric of emotion," a kind of language of the heart in which man could express his inmost feelings and communicate them to others.2 Though neither of these notions can account for our experience of a play as musically rich as The Tempest, together they can provide us with helpful tools for understanding how Shakespeare employed music in his drama. For from ideas of order we can derive principles of structure, and if there is a providential design in The Tempest, it is certainly an artistic and a musical one. Furthermore, this design manifests itself in the manner in which it speaks to deep human feelings; it is meaningful in the extent to which it can express the "language of the heart." In The Tempest these two modes of interpretation form a unity from which music emerges as an emotional and philosophical idea.