| 摘要 |
PURPOSE:To attain a musical instrument automatic playing device which is designated by the keying strength per each key, by processing a key address and solenoid driving information outputted in time division with multi-stage latch. CONSTITUTION:Playing information is read out from a storage section 2 of a data output cirucit 3 is read out, solenoid driving information based on a key address and keying strength information are outputted in time division via a control circuit, latched to a latch circuit 7, and the key address is latched to a latch circuit 8 during time information counted by the circuit 5. A latch circuit 12 of a solenoid driving circuit 11 of a key operation slenoid 1 designated is controlled with the circuit 8 and a decoder 9, and the circuit 11 is made enable during a required time. A drive signal generating circuit 13 is controlled with drive information from the circuit 7 via the circuit 12 and the solenoid 1 sequentially designated in response to the music recording is operated. Thus, the musical instrument playing device which is designated by the key striking per each key is obtained. |
