Need help on DF Mini Player activation

Hi Everyone,
I am new for this group. I need a help from you all to program a nano board to develop a small project to control DF mini player. I want to solve following things.

  1. Need a method to activate 3 different MP3 files of DF mini by 3 push buttons
    (momentary or toggle switch) which are connected to Nano to run and pause (by my
    command)
    I tried several options in various solutions in the internet but failed to do it.

Thanks in advance.
Shelton.

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