I created a Bonfire Symphony with piezo transducers (old record-player cartridges), selenium solar cells and kludged oscillators, etc. The amps and speakers were old radios I hacked into. Symphony setup: Insert the piezo carts into cracks in dried driftwood. Artfully stack the wood in a fire pit and wire the carts to amplification. Set the solar cells on stakes around the fire pit; wire them into the oscillators as variable resistors controlling the pitches generated. Now, pour on some firestarter and ignite the blaze. Flickering light makes ominous oscillations. Cracking of burning wood via the piezo transducers provides a rhythm track. When the piezo carts burn, they shriek and go silent. It all simmers down to silent ashes. A metaphor of life, I guess. Pass the moonshine.
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