The Roland Jupiter-4 (JP-4) was an analog synthesizer manufactured bythe Roland Corporation between 1978 and 1981. It was notable as the company'sfirst self-contained polyphonic synthesizer, and for ...

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Ikutaro Kakehashi, an influential figure in the 1980s pop music scene and founder of electronic instrument makers Roland Corp. and ATV Corp., has died at the age of 87, an ATV spokeswoman told The ...