2619.3.4 dev : MIDI Device ID 00H-7FHThe contents of this field in a received message are compared with the Model's MIDI Device ID, and receipt of the incomingmessage is allowed only when the two IDs match. When a message containing 7FH is received, receipt of the message isalways allowed, regardless of the Instrument's ID setting.Note, however, that the Instrument does not have a specific Device ID, so use only 7FH for send and receive.19.3.5 act : ActionaaaaaaaB = ActionThis field indicates the operation of the Instrument-specific System Exclusive Message.NOP: No OperationNo operation is performed when this action is received.IPR: Individual Parameter RequestIndicates an individual parameter value send request message. When the Instrument receives this action, it uses an IPSmessage to return the specified parameter value.IPS: Individual Parameter SendIndicates an individual parameter value send message. When the Instrument receives this action, it rewrites the value specifiedby the data field with the specified parameter value.OBR: Oneway Bulk Parameter Set RequestIndicates a send request message using parameter set image one-way mode. When the Instrument receives this action, ituses an OBS message to return the specified parameter set.OBS: Oneway Bulk Parameter Set SendIndicates a parameter set image send message using one-way mode. The parameter set to be transferred is divided intomultiple packets when it is greater than a prescribed size. At this time, packets are transferred at intervals of the prescribedtime (20 msec) or greater.HBR: Handshake Bulk Parameter Set RequestIndicates a send request message using the parameter set image handshake mode. When the Instrument receives this action,it uses an HBS message to return the specified parameter set.Format: 0dddddddBFormat: 0aaaaaaaBaaaaaaaB Action Function00H NOP No Operation01H IPR Individual Parameter Request02H IPS Individual Parameter Send03H OBR Oneway Bulk Parameter Set Request04H OBS Oneway Bulk Parameter Set Send05H HBR Handshake Bulk Parameter Set Request06H HBS Handshake Bulk Parameter Set Send0AH ACK Acknowledge0BH BSY Busy0CH RJC Reject0DH EOD End of Data0EH EOS End of Session0FH ERR Error