MIDIenablespeopletouse()computersandelectronicmusicalinstruments.ThereareactuallythreecomponentstoMIDI,thecommunications"(请作答此空)",theHardwareinterfaceandadistribution()called"StandardMIDIFiles".InthecontextoftheWWW,themostinterestingcomponentisthe()Format.Inprinciple,MIDIfilescontainsequencesofMIDIProtocolmessages:However,whenMIDIProtocol()arestoredinMIDIfiles,theeventsarealsotime-stampedforplaybackinthepropersequence.MusicdeliveredbyMIDIfilesisthemostcommonuseofMIDItoday.
A.device]
B.protocol
C.network
D.controller
正确答案是B