ATEMP MB1-S the button accordion MIDI keyboard - Synthesizer.

The button accordion MIDI keyboard is used for transmitting MIDI messages to sequencers and software and hardware tone generators via the MIDI OUT Din-5 port and MIDI USB, as well as to play timbres of the built-in synthesizer.

The Bayanola is a unique instrument, the play on which will help you master the basic skills of playing the button accordion (bayan). And also perform simple compositions (plays) for this wonderful instrument.

The left hand takes the chords on the buttons fretboard, and the right hand plays the melody.

On button accordion it is enough to master the performance of the three main scales and chords in them, in order to play them in other keys.

The main characteristics of the built-in synthesizer:

• 95 instruments, including 11 realistic accordion timbres and 20 timbres of high-quality electro and acoustic organs.

• Multi Effects DSP

• 16 midi channels

• Polyphony 81 votes

• Line-out audio output L R - stereo minijack


The body of the instrument is made of natural solid wood and coated with clear lacquer, it is pleasant to hold it in hand. Due to the correctly chosen dimensions, both adult musicians and children can play it. A small size and low weight (about 1kg) makes it easy to carry and take it with you on the road or on vacation - playing and learning the tunes for the accordion will help pleasantly brighten up your leisure time.

It is also possible to choose different timbres of button accordions, organs and others timbres. There is the possibility of assignable controllers and a joystick (the default is configured for a pitch bend), as well as connecting an external expression pedal.

Instructions for use

Cases with color lacquer coating (black, red) and gold painting are also available + 50$

Also available for ordering Bayanol with a button system CBA C-system, which is very popular in Europe.

Controllers and Functions

Atemp MB1-S has the following MIDI controllers

Turnable to the stop:

Expression (Controller 11), Modulation (Controller 1) - assignable, saved.


Pith Band Change or Controller (01 - 99) - assignable, persistent.

External pedal

Expression (Controller 11) - assignable, persistent.


Offset from 0 to 3 octaves up and down

Transposing from 0 to 11 semitones up and down

Programm Change program (timbre) selection (1 - 128)

All Notes Off (Panic) (Controller 123)

Select a MIDI channel to send MIDI messages.

Selecting fixed Velocity values ​​from 120 to 30

Split the keyboard into lower and upper zones

Purpose of controllers.

Direct, reverse joystick activation


Audio output linear L R - stereo mini Jack


USB MIDI Device, 5V power from USB power supply or power bank.

Connector for an external expression pedal - Jack 6.5mm


4-digit, 7 segment LED

Light-emitting diode

MIDI OUT - lights up when there are MIDI message signals at the MIDI OUT output - Din5, USB MIDI


F - function selection

<> - the choice of values

Windows software; Mac OS - installs automatically when connected to the computer’s USB port.

USB 5V power supply, 70 mA.

The size is 430 * 135 * 40 mm.

Weight 950 g

Turn on, connect to devices.

After turning on the display runs a string


with the version number of the program, then the octave offset function is enabled:


- select the octave of the button “<”, “>”; if you hold it down for more than 2 seconds, the following values ​​will be searched automatically.

Pressing "F" transposition offset selection function:


the next press of the “F” program selection function (timbre):


next press “F” channel selection function:


The next press of the “F” function is the selection of fixed values ​​for Velocity from 120 to 30 ( stored value ) :


the next press of “F” is the function of dividing the keyboard into lower and upper zones:


- “>” button to turn on and select the split note (stored value) “S-C”, the next press selects the C # note - the first octave and so on until the B note, in a circle, the upper zone go down by one octave, lower switches to the next channel from the selected one. The “<” button turns off keyboard splits.

If you hold down the “F” button for more than 5 seconds, additional configuration functions are added:

the function of assigning the number to the rotary controller:


- selection by turning the knob of the controller, joystick or pedal. The saved, selection of the controller number, the “<” button dozens from 0 to 90 - in a circle, the “>” button, units from 0 to 9 in a circle. For the joystick, if the value of the “<” button is dozens above 90, the Pith Band Change function is enabled.

The next press of the "F" function turns on, turns off the display of the value of the controllers:


- turning on the button “>” “cdon”, turning off the button “<” “cdoF”

The next press of the “F” function is the direct, reverse activation of the joystick:


- direct switching on the button “>” “Jdir” (0-127), the opposite button “<” “Jrev” (127-0).

- keyboard layout button accordion ">" "c-bn", accordion garmon "<" "c-Gn".

Sound bank timbres of the built-in synthesizer

Timbre (program) Type Timbre (program) Type Timbre (program) Type
1. Accordion 1 (Ru) Accordions 35. Reso SH  Bass Bass 69. Bottle Blow Wind
2. Accordion 2 (Ru) Accordions 36. Rubber Bass Bass 70. Ocarina Wind
3. Accordion 3 (Ru) Accordions 37. SH101  Bass 2 Bass 71. Pan Flute Wind
4. Accordion 4 (De) Accordions 38. Synth Bass 1 Bass 72. Recorder Wind
5. Accordion 5 (De) Accordions 39. Synth Bass 2 Bass 73. Shakuhachi Wind
6. Accordion 6 (Fr) Accordions 40. Synth Bass 201 Bass 74. Whistle Wind
7. Accordion 7 (It) Accordions 41. Synth Bass 3 Bass 75. 5th Saw Wave Lead
8. Accordion 8 (Fr) Accordions 42. Synth Bass 4 Bass 76. Bass & Lead Lead
9. Accordion 9 (It) Accordions 43. TB303 Bass Bass 77. Saw Lead Lead
10. Accordion 10 Accordions 44. Choir Aahs Ensemble 78. Solo Synth Vox Lead
11. Accordion 11 (De) Accordions 45. Slow String Ensemble Ensemble 79. Square Lead Lead
12. Harmonica Organs 46. String Ensemble Ensemble 80. Synth Calliope Lead
13. Reed Organ Organs 47. Synth Strings 1 Ensemble 81. Chiffer Lead Lead
14. Church Organ 1 Organs 48. Synth Strings 2 Ensemble 82. Fantasia Pad Synth Pad
15. Church Organ 2 Organs 49. Synth Strings 3 Ensemble 83. Halo Pad Synth Pad
16. Detuned Organ 1 Organs 50. Synth Voice Ensemble 84. Polysynth Pad Synth Pad
17. Detuned Organ 2 Organs 51. Voice Oohs Ensemble 85. Rotary String Synth Pad
18. Detuned Organ 3 Organs 52. French Horns Brass 86. Space Voice Pad Synth Pad
19. Even Bar Organs 53. Bright Trumpet Brass 87. Sweep Pad Synth Pad
20. Hammond Organ Organs 54. Trumpet 2 Brass 88. Warm Pad Synth Pad
21. 60's Organ 1 Organs 55. Trombone Brass 89. Atmosphere Synth FX
22. Organ 1 Organs 56. Tuba Brass 90. Brightness Synth FX
23. Organ 109 Organs 57. Brass Brass 91. Echo Drops Synth FX
24. Organ 2 Organs 58. Synth Brass 1 Brass 92. Goblin Synth FX
25. Organ 201 Organs 59. Synth Brass 2 Brass 93. Ice Rain Synth FX
26. Organ Bass Organs 60. Synth Brass 3 Brass 94. Soundtrack Synth FX
27. Percussive Organ Organs 61. Philly Hit Brass 95. Star Theme Synth FX
28. Rock Organ Organs 62. Alto Sax Reed
29. Rotary Organ Organs 63. Bariton Sax Reed
30. Rotary Organ Fast Organs 64. Hyper Alto Sax Reed
31. Rotary Organ Slow Organs 65. Soprano Sax Reed
32. Overdrive Guitar Guitars 66. Tenor Sax Reed
33. Analog Bass Bass 67. Clarinet Reed
34. Modular Bass 2 Bass 68. Oboe Reed