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Polaris Instrument Registry

This section lists known Polaris keyboards (models 2121, 2123, and 2123B), their owners—past and present—and their stories. This is a new effort, similar to the Chroma Registry which was begun in 1999 and now includes over 500 instruments. Information typically included is:

Please send information on your instrument to

See also the Chroma Instrument Registry.

No Serial Number


Paul DeRocco

"I have one of the prototype Polarises, with the red/orange/yellow switches. It has no S/N. I have no idea if it's working, but I'll bet the U.S. made membrane switches are fine. ;-)"

Paul was the chief hardware architect on the Chroma project.