Casio LK-50 Midi Manual

Also see for LK-50: Function guide Troubleshooting Specifications General guide User guide

Contents

Casio LK-50 Midi Manual Manual pdf 1 page image

E-35MIDIWhat is MIDI?The letters MIDI stand for Musical Instrument Digital Interface, whichis the name of a worldwide standard for digital signals and connec-tors that makes it possible to exchange musical data between musicalinstruments and computers (machines) produced by different manu-facturers. MIDI compatible equipment can exchange keyboard keypress, key release, tone change, and other data as messages.Though you do not need any special knowledge about MIDI to usethis keyboard as a stand-alone unit, MIDI operations require a bit ofspecialized knowledge. This section provides you with an overviewof MIDI that will help to get you going.MIDI ConnectionsMIDI messages are send out through the MIDI OUT terminal of onemachine to the MIDI IN terminal of another machine over a MIDIcable. To send a message from this keyboard to another machine, forexample, you must use a MIDI cable to connect the MIDI OUT termi-nal of this keyboard to the MIDI IN terminal of the other machine. Tosend MIDI messages back to this keyboard, you need to use a MIDIcable to connect the other machine’s MIDI OUT terminal to the MIDIIN terminal of this keyboard.To use a computer or other MIDI device to record and playback theMIDI data produced by this keyboard, you must connect the MIDIIN and MIDI OUT terminals of both machines in order send and re-ceive data.• To use the MIDI THRU function of a connected computer, se-quencer, or other MIDI device, be sure to turn this keyboard’s LO-CAL CONTROL off (page E-37).Computer or other MIDI deviceMIDI IN MIDI OUT MIDI IN MIDI OUT7 8 94 5 6102 3POWERMODEVOLUMEMAXTEMPOINTROSTEP 1 STEP 2 STEP 3DEMONORMAL/FILL-INVARIATION/FILL-INSYNCHRO/ENDINGFULL RANGEKEY LIGHTKEY LIGHTTOUCHRESPONSEMETRONOME BEATTOUCHTRANSPOSE/TUNE/MIDI MEMORY STEPSPLIT LAYERGMMEMORYSTEPRESPONSEACCOMPVOLUMECHORDFINGEREDCASIO CHORDNORMALMINSTART/STOPSTOPPL AY/ PAUSEREWFFLEFT/TRACK1RIGHT/TRACK2SONG BANK CONTROLLER3-STEP LESSONREST(TIE)MIDI ChannelsMIDI allows you to send the data for multiple parts at the same time,with each part being sent over a separate MIDI channel. There are 16MIDI channels, numbered 1 through 16, and MIDI channel data isalways included whenever you exchange data (key press, pedal op-eration, etc.)Both the sending machine and the receiving machine must be set tothe same channel for the receiving unit to correctly receive and playdata. If the receiving machine is set to Channel 2, for example, it re-ceives only MIDI Channel 2 data, and all other channels are ignored.This keyboard is equipped with multi-timbre capabilities, whichmeans it can receive messages over all 16 MIDI channels and play upto 16 parts at the same time.Keyboard and pedal operations performed on this keyboard are sentout by selecting a MIDI channel (1 to 16) and then sending the appro-priate message.General MIDIAs we have already seen, MIDI makes is possible to exchange musi-cal data between devices produced by different manufacturers. Thismusical data does not consist of the notes themselves, but rather in-formation on whether a keyboard key is pressed or released, and thetone number.If tone number 1 on a keyboard produced by Company A is PIANOwhile tone number 1 on a Company B's keyboard is BASS, for exam-ple, sending data from Company A's keyboard to Company B's key-board produces a result entirely different from the original. If a com-puter, sequencer or other device with auto accompaniment capabili-ties is used to produce music data for the Company A keyboard whichhas 16 parts (16 channels) and then that data is sent to the CompanyB keyboard which can receive only 10 parts (10 channels), the partsthat cannot be played will not be heard.The standard for the tone numbering sequence, the number of pads,and other general factors that determine the sound source configura-tion, which was arrived at by mutual consultations by manufactur-ers, is called General MIDI.The General MIDI standard defines the tone numbering sequence,the drum sound numbering sequence, the number of MIDI channelsthat can be used, and other general factors that determine the soundsource configuration. Because of this, musical data produced on aGeneral MIDI sound source can be played back using similar tonesand identical nuances as the original, even when played on anothermanufacturers sound source.This keyboard conforms with General MIDI standards, so it can beconnected to a computer or other device and used to play back Gen-eral MIDI data that has been purchased, downloaded from the Inter-net, or obtained from any other source.Computer or other MIDI deviceMIDI OUT MIDI INMIDI INMIDI keyboard or MIDI sound sourcceMIDI keyboard or MIDI sound sourcceMIDI Channel 1 MelodyMIDI Channel 2 BassMIDI Channel 10 DrumsMIDI keyboard or MIDI sound sourcceMIDI INReceive MIDI Channel = 1Plays melody.Receive MIDI Channel = 2Plays bass.Receive MIDI Channel = 10Plays drum part.474A-E-037A