Introduction
Thank you for your purchase of the McGrey LK-6150 Luminous Key Electronic Keyboard. We hope that you will enjoy the use of the McGrey LK-6150 Luminous Key Electronic Keyboard.
Please read through this manual carefully before beginning to use, so that you will be able to take full advantage of the McGrey LK-6150 Luminous Key Electronic Keyboard features and enjoy trouble-free operation for years to come.
Please keep this manual at a safe and dry place where you easily can access it.
⚠ Caution!
Before switching on the instrument or device, read carefully the safety instructions to avoid serious injuries or damage of the product.
I. Panel Control and External Ports
Top Panel Control Overview
The keyboard features a control panel with various buttons and a display. Key controls include:
- 1. Loudspeaker: Integrated sound output.
- 2. Power: On/Off switch for the keyboard.
- 3. Previous/Next: Navigate through songs or settings.
- 4. Play/Pause: Control playback of songs or rhythms.
- 5. Stop: Halt playback or recording.
- 6. MP3 Volume Control: Adjust volume for MP3 playback.
- 7. Sequence/Random/Single: MP3 playback modes.
- 8. Sound Effect: Apply various sound effects.
- 9. Sync: Synchronize accompaniment.
- 10. Fill-in: Insert rhythm variations.
- 11. Tone Selection: Choose instrument tones.
- 12. Rhythm Selection: Select accompaniment rhythms.
- 13. Luminance: Control keyboard light brightness.
- 14. Demo Song: Play demonstration songs.
- 15. LCD Display: Screen showing current settings and information.
- 16. Keyboard Percussion: Activate percussion mode.
- 17. Recording: Enable recording function.
- 18. Program: Enable rhythm programming.
- 19. Play: Playback recorded content.
- 20. SPLIT: Enable keyboard splitting.
- 21. Sustain: Activate sustain effect.
- 22. Vibrato: Activate vibrato effect.
- 23. One Key: Training mode.
- 24. Follow: Training mode.
- 25. Ensemble: Training mode.
- 26. Status Memory: Save and recall settings.
- 27. Numbers: Numeric input buttons.
- 28. Single: Single chord mode.
- 29. Fingered: Fingered chord mode.
- 30. Chord Tone: Change chord tone.
- 31. Chord OFF: Disable chord function.
- 32. Metronome: Activate metronome.
- 33. Start/Stop: Start or stop functions.
- 34. Master Volume: Adjust overall volume.
- 35. Accomp. Volume: Adjust accompaniment volume.
- 36. Tempo: Adjust rhythm tempo.
- 37. Transpose: Transpose pitch.
- 38. Chord Zone: Area for chord playing.
Rear Panel Port Overview
The rear panel provides essential connectivity:
- 39. UDISK: USB port for MP3 music playback (supports up to 32GB).
- 40. AUDIO INPUT: Connect external audio devices (e.g., mobile phone, MP3 player, computer).
- 41. MIC: Microphone input for singing and playing.
- 42. PHONES/OUTPUT: Headphone output (disables loudspeaker automatically) or audio output to external amplifiers/mixers.
- 43. DC 12V: Power input for the dedicated power adapter.
II. Preparations before Playing
Power Adapter
A dedicated power adapter must be used. Connect the output end of the adapter to the power port on the rear panel of the keyboard, and then the other end to the power socket. The input voltage of the adapter must be compatible with the power supply voltage.
Audio Output / External Headphone
To use audio output, first turn off the keyboard and external audio devices. Connect one end of the audio cable to the PHONES/OUTPUT port on the rear panel of the keyboard, and the other end to the audio input port of the audio devices.
For headphone connection, when connecting a headphone to the PHONES/OUTPUT port, the loudspeaker will be disabled automatically, allowing private practice. Note: When using headphones, do not turn up the volume to the maximum for a long time, as this may cause hearing loss.
Mic Input and Audio Input
Connect a microphone to the MIC port to start singing and playing. The keyboard has a stereo input function, allowing sound signals from mobile phones, MP3 players, computers, and other audio devices to be input into the keyboard system. First, turn off the keyboard, then connect one end of an audio cable to the output port of an audio device, and the other end to the AUDIO INPUT port on the rear panel of the keyboard. Finally, turn on the keyboard.
Playing MP3 Music
Insert a U disk into the UDISK port on the rear panel of the Keyboard for MP3 music playing. The keyboard supports U disks up to 32GB (max.).
- Press the [MP3 Volume Control] buttons to adjust the volume.
- Press [Previous] to go to the previous track, press [Next] to go to the next track, [Play/Pause] to play/pause a track, [Stop] to stop a playing track.
- Use the repeat mode buttons (represented by symbols like cycle, random, single) to cycle through the repeat modes for continuous, random, or single playback.
- Press [Effect] to adjust the effect among Common, Pop, Rock, Jazz, and Classic. The keyboard is defaulted to be in common effect.
III. Basic Playing Method
Press [Power On/Off], and the keyboard will light up from both sides, and the LCD display will turn on and show the current Tone, tempo, and other status. Then you may operate the Keyboard as required.
Luminous Keyboard
The Keyboard has a luminous function. In playing, training, and demo song modes, the light hint will be provided. The luminous function is enabled by default. Press [Luminance] to enable or disable this function.
Master Volume Adjustment
Press [Master Vol +/-] to turn up or turn down the master volume. "VOLUME" and the current volume level will be shown on the display. Press [Master Vol +/-] simultaneously to reset to the default value. The master volume can also control the accompaniment volume.
Accompaniment Volume Adjustment
Press [Accomp Vol +/-] to turn up or turn down the master volume. "RC-VOLUME" and the current volume level will show on the display. Press [Accomp Vol +/-] simultaneously to reset to the default value.
Tone Selection
The Keyboard provides 255 tones, from "000" to "254", for your selection. When turning on the keyboard, the Tone selection function will be enabled automatically, and "TONE" and current tone number will show on the displays. When under other states, press [Tone Selection] to enable the Tone selection function. The Tone is defaulted to be "000", and it can be adjusted by pressing the corresponding number buttons or pressing the "+" / "-" button.
Playing Percussion
This Keyboard provides 61 kinds of keyboard percussions. Press [Keyboard Percussion] to convert the key to percussion key. Each key corresponds to one percussion instrument. Press this button again to disable the keyboard percussion function.
Playing Demonstration Songs
50 demo songs have been stored in the Keyboard, from "000" to "049", for your selection. Press [Demo Songs] to play all demonstration songs in order. The luminous key will flash to the melody, and "SONG" and current demo song number will show on the display. Press the number buttons or "+" / "-" buttons to select the demonstration song. When pressing [Tone] during the demonstration song playing process, "TONE" will show on the display. Press the number buttons or the "+" / "-" button within 3 seconds to select other Tones for playing the demonstration song. Press [Start/Stop] or press [Demo Song] again to stop playing the demonstration song.
VIII. Recording and Rhythm Programming
Recording
Press [Record] to enable the recording function, "REC" will show on the display. Under this mode all playing notes will be recorded. When the storage is full, "REC" will show on the display, and recording will stop automatically.
- Press [Play] to playback the recorded notes, and "PLAY" will show on the display. On completion of playback, it will enter to the recording mode and "REC" will show on the display. You can record a new rhythm, or you can press [Play] to playback the recorded rhythm.
- Press [Start/Stop] or press [Record] again to disable the recording function, and all recorded rhythm will be removed.
Rhythm Programming
Press [Program] to enable the rhythm programming function, "PRG" will show on the display, and the keyboard percussion will be activated. Under this mode, you can create custom rhythms by playing the corresponding percussion key.
- 32 percussions can be recorded at maximum, after that "PRG" will flash on the display, and programming will stop automatically.
- Press [Play] to playback the programming rhythm. Press [Play] again to stop playback. "PRG" will show on the display and programming function will be enabled. You can re-program rhythms or you can press [Play] again to playback.
- Press [Start/Stop] or press [Program] again to disable the programming function, and all recorded rhythm will be removed.
IX. Luminous Key Three-step Intelligent Training
Training I: One Key
Press [One Key] to enable the One Key training function, "LEARN", "SONG" and the song number will show on the display, and then press "+"/"-" button to select the song to be learned. The luminous keyboard will light on according to the main melody notes, indicating the note to be played, and you can perform by following the guidance of the lighted key. Single Key training aims at duration learning, and there is no requirement for pitch or correctness. This mode allows mistakes when playing the keys, but the keyboards still plays correct notes, and the luminous keys will light on according to the correct notes while the key zone in the display will also show the correct notes. After one song is finished, repeat the current song to be learned. Press [Start/Stop] or press [One Key] to disable the training function.
Training II: Follow
Press [Follow] to enable the follow function, "LEARN", "SONG" and the song number will show on the display, and then press "+"/"-" button to select the song to be learned. With [Follow] function, you can learn by following the correctly playing notes. You can play according to the demonstration song, the key will light on according to the melody notes, indicating the notes to be played, and you can play correctly by following the guidance. You can also learn how to play by following the indicators in the key zone of the display. It will wait for you to play the correct note before it moves to the next one. Note: Under this state, the Keyboard plays only the correct notes, and gives no response to the wrong notes. Press [Start/Stop] or press [Follow] to disable the training function.
Training III: Ensemble
Press [Ensemble] to enable the Ensemble training function, "LEARN", "SONG" and the song number will show on the display, and then press "+"/"-" button to select the song to be learned. The Ensemble training aims at the correct and comprehensive learning of the song duration and notes. The keynote will be shielded for ensemble. The luminous keyboard will light on according to the main melody notes, indicating the note to be played, and you can perform by following the guidance of the lighted key. You need to play the correct note according the correct duration of the song. If you fail to play within 3 seconds, the keyboard will automatically play the keynote, and the keyboard zone in the screen will display the correct note and tempo. After one song is finished, repeat the current song to be learned. Press [Start/Stop] or press [Ensemble] to disable the training function.
VI. Status Memory Function
With the status memory function, you can save the tone, rhythm, tempo and other parameters to be changed during playing, for fast shifting. This keyboard is equipped with 3 status memories, which can be flexibly called at any time during playing.
Storage of Status Memory
Set the tone, rhythm, tempo and chord as required, and then press the [Status Memory] button and one of [Memory 1] to [Memory 3] to save the current status.
Calling of Status Memory
Press any one of [Memory 1] to [Memory 3] to call the setting parameters saved under this memory to replace the current status. Note: No power failure protection is provided for the saved contents, and the saved contents will be lost after the electronic keyboard is restarted after power cut.
VII. Effect Control
Transposing Function
With the transposing function, you can play music of other tunes with C-tune fingering method. Press the [Transpose-] to decrease the tone by half-tone (minor second), and the tune in C-tune keyboard zone will change to B-tune. Press the [Transpose+] to increase the tone by half-tone (minor second), and the tune in C-tune keyboard zone will change to #C tune or bD tune. When pressing the [Transpose-] for twice, C-tune will shift to bB-tune. When pressing the [Transpose +] for five times, C-tune will shift to F-tune. Press [Transpose+] and [Transpose-] simultaneously to recover to C-tune "00". Press [Transpose +] and [Transpose -] to adjust the level from "P-6" to "P06".
Sustain Function
Press [Sustain], "SUS" will show on the display, and the sustain effect will be activated. Press this button again to disable the sustain effect.
Vibrato Function
Press [Vibrato], "VIB" will show on the display, and the vibrato effect will be activated. Press this button again to disable the vibrato effect.
Keyboard Splitting Function
Press [SPLIT] to enable the keyboard splitting function, "SPLIT" will show on the display. 24 keys on the left of the keyboard will split with the remaining keyboard. While the left keyboard zone will increase by one octave and maintain the original tone, the right keyboard zone will decrease by one octave to maintain the same pitch with the left keyboard zone. The tone of the right keyboard zone can be set as needed so different tones can be played by the left and right keyboard zones at the same time. Press [SPLIT] again to disable this function.
IV. Auto Rhythm
Rhythm Selection
This Keyboard provides 255 rhythms, from "000" to "254", for your selection, and the rhythm is defaulted to be "000". Press [Rhythm Selection] to enable the rhythm selection function. "RHYM" and current rhythm number will show on the display. Then you can press the number buttons or the "+"/"-" buttons to select other rhythms.
Rhythm Control
- Rhythm Enabling: Press [Start/Stop] to start accompaniment rhythm. Press [Sync], "SYN" will show on the display and the four beat points will flash simultaneously, then play any key in the chord key zone (the 1st-19th key, from left), the accompaniment rhythm will be enabled.
- Interlude: After the accompaniment rhythm is activated, press [Fill-in] to have a temporary rhythm play during the accompaniment rhythm. If pressed and held [Fill-in], the temporary rhythm will continue.
- Stop Rhythm: During the accompaniment rhythm, press [Start/Stop] to stop the accompaniment rhythm.
Metronome
The metronome contains four tempos: 1/4, 2/4, 3/4, and 4/4, respectively. Press the [Metronome] continuously to select the four tempos. Press the [Metronome] button again to stop the tempo.
Tempo Adjustment
Press [Tempo +/-] to increase or decrease the rhythm speed. Press the two buttons simultaneously to reset to the default value.
V. Auto Bass Chord
Single Chord
Under the state that the rhythm is enabled, press [Single], and "SIN" will show on the display, and then you can play a single chord on the keys in the chord zone of the keyboard.
Fingered Chord
Under the state that the rhythm is enabled, press the [Fingered] button. "FIN" will show on the display, and then you can play a fingered chord on the keys in the chord zone of the keyboard.
Chord OFF
Press [Chord OFF] to disable the single chord or the fingered chord function.
Chord Tone
During single chord or fingered chord accompaniment, you can press [Chord Tone] to change the chord tone, and press [Chord Tone] again to resume the original chord tone.
Single Chord Fingering Examples (C Key)
The following describes common chord fingerings for the C key. Other keys can be derived by analogy.
- C Major (M): C, E, G
- C Minor (m): C, E♭, G
- C Dominant 7th (7): C, E, G, B♭
- C Minor 7th (m7): C, E♭, G, B♭
- C Major 6th (C6): C, E, G, A
- C Major 7th (CM7): C, E, G, B
- C Major 9th (CM(9)): C, E, G, B, D
- C Augmented (Caug): C, E, G♯
- C Minor 6th (Cm6): C, E♭, G, A
- C Minor 7th flat 5 (Cm7(b5)): C, E♭, G♭, B♭
- C Minor 9th (Cm(9)): C, E♭, G, B♭, D
- C Minor Major 7th (CmM7): C, E♭, G, B
- C Minor Major 9th (CmM7(9)): C, E♭, G, B, D
- C Diminished (Cdim): C, E♭, G♭
- C Diminished 7th (Cdim7): C, E♭, G♭, B♭♭ (A)
- C Suspend 4th (Csus4): C, F, G
- C 1+2+5: C, D, G
Appendix: Keyboard Timbre Table (255 Sounds)
| Code | Timbre Name | Code | Timbre Name | Code | Timbre Name | Code | Timbre Name | ||
|---|---|---|---|---|---|---|---|---|---|
| 000 | Acoustic Grand Piano | 054 | Clavi 1 | 107 | Wood Barafon 1 | 161 | Twin Trombones 1 | 215 | Twin Trombones 2 |
| 001 | Rhodes Piano | 055 | Glockenspiel 1 | 108 | Electric Piano 1 | 162 | Synth Harpsi. 2 | 216 | Jazz Organ 2 |
| 002 | Chorused Piano | 056 | Tubular Bells 1 | 109 | Multi Reed 1 | 163 | Attack Clav. 2 | 217 | Bright String 2 |
| 003 | Celesta 1 | 057 | Dulcimer 1 | 110 | Guitar Pinch 1 | 164 | Chorus Guitar 1 | 218 | Reed Horn 2 |
| 004 | Music Box 1 | 058 | Drawbar Organ 1 | 111 | Multi Wind 1 | 165 | Steel Bell 2 | 219 | Glockenspiel 2 |
| 005 | Vibraphone | 059 | Tango Accordion 1 | 112 | Clavi 2 | 166 | Tsugaru | 220 | Drawbar Organ 2 |
| 006 | Marimba 1 | 060 | Electric Guitar (Muted) 1 | 113 | Celesta 2 | 167 | Oct Harp 1 | 221 | Muted Horn 2 |
| 007 | Xylophone 1 | 061 | Overdriven Guitar 1 | 114 | Harpsichord 2 | 168 | Bodhran 1 | 222 | Pizzicato Strings 2 |
| 008 | Percussive Organ | 062 | Contrabass 1 | 115 | Mellow Fm 1 | 169 | Tubular Bells 2 | 223 | Nay 2 |
| 009 | Rock Organ | 063 | Tremolo Strings | 116 | Pi Pa 2 | 170 | Suona | 224 | Puff Harmonica 2 |
| 010 | Church Organ | 064 | Pizzicato Strings 1 | 117 | Upright Piano 1 | 171 | Castanets | 225 | Muted Trumpet 2 |
| 011 | Reed Organ 1 | 065 | Timpani | 118 | Electric Piano 2 | 172 | Attack Harp 1 | 226 | Upright Piano 2 |
| 012 | Accordion | 066 | String Ensemble 2 | 119 | Hard Vibe 1 | 173 | Electric Vibraphone 1 | 227 | Soft Accord 2 |
| 013 | Harmonica | 067 | Synth Strings 1 | 120 | Wood Barafon 2 | 174 | Soft Sax 1 | 228 | Uillean Harp 2 |
| 014 | Acoustic Guitar (Nylon) | 068 | Synth Strings 2 | 121 | Music Box 2 | 175 | Soft Clav. 1 | 229 | Tron Flute 2 |
| 015 | Acoustic Guitar (Steel) | 069 | Choir Aahs | 122 | Marimba 2 | 176 | Soft Guitar 1 | 230 | Blown Bottle 2 |
| 016 | Electric Guitar (Jazz) | 070 | Voice Oohs | 123 | Santur | 177 | Grow Guitar 1 | 231 | Indian Flute 2 |
| 017 | Electric Guitar (Clean) 1 | 071 | Synth Voice | 124 | Reed Organ 2 | 178 | Didgeridoo 1 | 232 | Slow Violin 2 |
| 018 | Distortion Guitar | 072 | Orchestra Hit | 125 | Puff Harmonica 1 | 179 | Attack Barafon 1 | 233 | Electric Guitar (Muted) 2 |
| 019 | Acoustic Bass | 073 | Muted Trumpet 1 | 126 | Ukulele 1 | 180 | Mute Barafon 1 | 234 | Multi Wind 2 |
| 020 | Electric Bass (Finger) | 074 | Synth Brass 2 | 127 | 12-str. Gt 1 | 181 | Nay 1 | 235 | Electric Vibraphone 2 |
| 021 | Electric Bass (Pick) | 075 | English Horn 1 | 128 | Guitar Pinch 2 | 182 | Soft Santur | 236 | Bodhran 2 |
| 022 | Fretless Bass | 076 | Recorder | 129 | Slow Violin 1 | 183 | Dual Horns 1 | 237 | Mellow Fm 2 |
| 023 | Slap Bass 1 | 077 | Blown Bottle 1 | 130 | Bright String 1 | 184 | Hard Barsoon 1 | 238 | Multi Reed 2 |
| 024 | Slap Bass 2 | 078 | Shakuhach | 131 | Jungle Bass 2 | 185 | Tron Flute 1 | 239 | Contrabass 2 |
| 025 | Synth Bass 1 | 079 | Whistle | 132 | Indian Flute 1 | 186 | Kawala 1 | 240 | Barafon 2 |
| 026 | Synth Bass 2 | 080 | Ocarina | 133 | Clavi 3 | 187 | Jazz Organ 1 | 241 | Wind Organ 2 |
| 027 | Violin | 081 | Lead (Sawtooth) 1 | 134 | Celesta 3 | 188 | Soft Accord 1 | 242 | 12-str. Gt 2 |
| 028 | Viola | 082 | Lead (Calliope) 1 | 135 | Church Bells | 189 | Wind Organ 1 | 243 | Attack Barafon 2 |
| 029 | Cello | 083 | Lead (Bass+Lead) 1 | 136 | Marimba 3 | 190 | Viola Attack 1 | 244 | Lead (Calliope) 2 |
| 030 | Orchestral Harp | 084 | Pad (Warm) 1 | 137 | Dulcimer 2 | 191 | Bari & Tenor 1 | 245 | Viola Attack 2 |
| 031 | String Ensemble 1 | 085 | Sitar | 138 | Reed Organ 3 | 192 | Soft Sax 2 | 246 | Pad (Warm) 2 |
| 032 | Trumpet | 086 | Shamisen 1 | 139 | Electric Guitar (Clean) 2 | 193 | Attack Harp 2 | 247 | Oct Harp 2 |
| 033 | Trombone | 087 | Koto 1 | 140 | Koto 2 | 194 | Didgeridoo 2 | 248 | Bari & Tenor 2 |
| 034 | Tuba | 088 | Kalimba 1 | 141 | Xylophone 2 | 195 | Dual Horns 2 | 249 | Agogo 2 |
| 035 | French Horn | 089 | Bag Pipe 1 | 142 | Shanai 2 | 196 | Hard Barsoon 2 | 250 | Flugel Horn 3 |
| 036 | Brass Section | 090 | Fiddle 1 | 143 | Dulcimer 3 | 197 | Kawala 2 | 251 | Organ Flute 3 |
| 037 | Synth Brass 1 | 091 | Shanai 1 | 144 | English Horn 2 | 198 | Soft Guitar 2 | 252 | Fiddle 3 |
| 038 | Soprano Sax | 092 | Tinkle Bell | 145 | Electric Guitar (Clean) 3 | 199 | Mute Barafon 2 | 253 | Feedback Gt. 3 |
| 039 | Alto Sax 1 | 093 | Agogo 1 | 146 | Shamisen 2 | 200 | Lead (Bass+Lead) 2 | 254 | Chorus Guitar 3 |
| 040 | Tenor Sax | 094 | Steel Drums | 147 | Koto 3 | 201 | Melodic Tom 2 | ||
| 041 | Baritone Sax | 095 | Woodblock 1 | 148 | Kalimba 2 | 202 | Grow Guitar 2 | ||
| 042 | Oboe | 096 | Taiko Drum | 149 | Steel Bell 1 | 203 | Lead (Sawtooth) 2 | ||
| 043 | Bassoon | 097 | Melodic Tom 1 | 150 | Alto Sax 2 | 204 | Jazz Bass 2 | ||
| 044 | Clarinet | 098 | Synth Drum | 151 | Woodblock 2 | 205 | Chorus Guitar 2 | ||
| 045 | Piccolo | 099 | Reverse Cymbal | 152 | Synth Harpsi. 1 | 206 | Feedback Gt. 2 | ||
| 046 | Flute | 100 | Jungle Bass 1 | 153 | Attack Clav. 1 | 207 | Fiddle 2 | ||
| 047 | Pan Flute | 101 | Pi Pa 1 | 154 | Crystal 1 | 208 | Organ Flute 2 | ||
| 048 | Lead (Square) | 102 | Feedback Gt. 1 | 155 | Bag Pipe 2 | 209 | Flugel Horn 2 | ||
| 049 | Banjo | 103 | Uillean Harp 1 | 156 | Barafon 1 | 210 | Crystal 2 | ||
| 050 | E-Tone Piano | 104 | Jazz Bass 1 | 157 | Organ Flute 1 | 211 | Soft Clav. 2 | ||
| 051 | Electric Grand Piano | 105 | Flugel Horn 1 | 158 | Kalimba 3 | 212 | Overdriven Guitar 2 | ||
| 052 | Honky-tonk Piano | 106 | Muted Horn 1 | 159 | Reed Horn 1 | 213 | Ukulele 2 | ||
| 053 | Harpsichord 1 | 160 | Hard Vibe 2 | 214 | Tango Accordion 2 |
WEEE Declaration
The product is designed and manufactured with materials and components of high quality, which are recyclable and can be reused. The symbol (a crossed-out wheeled bin) means that the product should be disposed of separately from household waste when it reaches its end of life. Please dispose of this equipment at your local collection point or recycling center. Please help to protect the environment in which we all live.
All specifications and appearances are subject to change without notice. All information was correct at time of printing. Musikhaus Kirstein GmbH does not guarantee for the accuracy or completeness of any description, photograph or statement contained in this manual. Printed colors and specifications may vary slightly from product. Products from Musikhaus Kirstein GmbH are only sold through authorized dealers. Distributors and dealers are not agents of Musikhaus Kirstein GmbH and have no authority to bind Musikhaus Kirstein GmbH legally in any way. This manual is protected by copyright. Any copying or reprint, even in excerpts, is only allowed with written consent of Musikhaus Kirstein GmbH. The same applies to reproduction or copying of images, even in altered form.
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