Referenced by|
| US4218950 | Apr 25, 1979 | Aug 26, 1980 | Baldwin Piano & Organ Company | Active ladder filter for voicing electronic musical instruments | | US4409877 | Jul 14, 1981 | Oct 18, 1983 | CBS, Inc. | Electronic tone generating system | | US4653375 | Aug 14, 1985 | Mar 31, 1987 | Victor Company of Japan, Ltd. | Electronic instrument having a remote playing unit | | USRE31653 | Sep 30, 1982 | Aug 28, 1984 | Nippon Gakki Seizo Kabushiki Kaisha | Electronic musical instrument of the harmonic synthesis type |
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