Tremor Transducer was written to explore ideas related to two ephemeral phenomena: fire and sound. Both of these are seemingly disembodied yet able to instill awe or wreak destruction; both can exist as silky tendrils, sudden bursts, or raging calamities; and both depend on the air for their existence. Formally, Tremor Transducer is modeled on both the composite envelope of a single sound and the transcription of the changing heat levels of a fire. The electroacoustic sounds in the piece are synthesized in real time by a software instrument created by the composer in the Max/MSP environment. The computer music’s role in the music is to be the “smoke” around the musicians, created by them but floating above, its incorporeal performance symbolizing the incorporeal nature of both sound and fire, emerging as if rubbing bows across strings could start fire as well as sound. Tremor Tranducer was written for the NeXT Ens.