| 摘要 |
A device for automatic tonal accompaniment in musical instruments equipped with a rhythm unit, the fundamental, the quint, or another tone related to a chord being held and/or the chord itself becoming available in a predetermined sequence in a selected rhythm, for at least one tonal key a chord sensor is provided at whose output a signal appears in the presence of a chord, and an associated switching device is connected thereto which in the absence of a chord switches the chord sensor to detection of individual tones.
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