roland SD 50 controlled by masterkeayboards A 300Pro

[Romtone]

Hi,

I apologize for my bad english, beceause i'm french.
I recently got the masterkeyboards A300 pro and the sound device roland SD50, and i would like to know if it's possible to control (play, stop, next track, previous) the lauch of the of a wav file on a usb stick plugged into the SD50 with any key of the A300 pro

After searching about midi programmation, i found that may be a Sysex message could be the solution to control the SD50 with the masterkeyboards A300 pro.
So i got :
the roland id number : 41

the device id : 10 42 12 (found on the midi implementation page of the SD50)

and an adress : 90 5E 00 used to control a DAW software with the SD 50 for the play button (seen of the manual of the SD 50 page 80). So not sure that it works in my case.

So i think it would be too simple if the message is :

F0 41 10 42 12 90 5E 00 F7

Is there a master of the Sysex message that could help me ?