SD midi player



Midi file player on SD card




Midilector is a Midi file player on SD card intended to drive a midi decoder (as Midi_2org_64 for example). He can obviously drive any midi electronic instrument (piano, synthesizer, etc.)

It is delivered as on the picture,  without case. It was designed to be the most compact possible and to be integrated into an organ or any other automatic musical instrument. The buyer is thus considered for having the technical knowledge necessary for this. No soldering needed.


Midilector is based on the Simon Lehmayr's open source project, Mr Midi:



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Main features:


  • Play any standard midi files (format 0) from an SD Memory card. Files may be organised into folders.

  • Support any standard SD card up to 2 GO

  • Multi tracks 16 channel

  • Board size: 116*52 mm

  • 24*2 Lcd screen with backlight (optional button to switch off the light)

  • Tempo variations (+ or - )while playing with 2 buttons

  • Possibility of synchronisation: crank rotation can drive song start, tempo and stop.

  • Lyrics on screen while playing

  • Design to be fitted to any instrument panel in different possible ways.

  • Powered by any DC source from 7 volt up to 18 volts
  • Provided with a switch and wire to fit onto your instrument front panel

More features and user manual here:



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 For any question, please, feel free to contact me:


Also availlable: Midilector R, with recording function !

Sample screens:
Example of use on my accordion: you certainly can do better and want to hide the player, I just want to show it !
Another example: John Pettifer's Midilector box
Daniel's small reed organ
Alvaro's accordion
Philippe's Decap Organ



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