Georgia Tech has announced the finalists in its annual Guthman Musical Instrument Competition. Every year, for the last 28 years, the school invites inventors from around the world to submit new instruments of their own design to compete for $10,000 in prizes. Past finalists have included founding members of Teenage Engineering, Artiphon, and Roli. And last year KOMA Elektronik won for their creation the Chromaplane.

This year’s finalists are an impressive collection of oddballs. There’s Amphibian Modules, a modular synth that swaps patch cables for a dish of saltwater. The Gajveena, which combines a double bass with a traditional Indian …

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