Trying to make an audio player for old audio format

Hi people of the community.

I was planning to make a audio player for an old audio format.
I think, i can do it and the SO will recognize. Well, doesn't work my 1st idea, the SO doesn't recognize this audio files.
2nd, i search the audio formats here and no ones make a post about it.
The audio format are: .s3m .mod .xm .it .far .669.
For some of the readers: Yes, i am old!.
This are almost PRE midi files, principally started in Commodore Amiga computers (16bits) and then evolved to the PC.
I know, This audio format are outdated, but i have a lot of files and i love them and i cannot use it with the phone or tablet.... and that's the reason of trying to make an audio player for Android.

I didn't find any extension, well. i didn't find a word of them :grin:

They are part of my youth and i want to use it in the present.
i know there are ways to use it now, but in windows, linux, but i didn't find a clue for android.

Any constructive comment will be appreciate.

Hi Anke.

Thanks for replaying.
Well, There aren't in the list. The near thing in the list are the MIDI format, but aren't the same.
So, i think i couldn't execute any of the files i have in cd and dvd.
I have a question. I read i can use it tru javascript library... but i do not know how to linked the library in js to an app developed with Ai2.
It's a opensource library for js

It should be possible to convert the files to something App Inventor can handle convert audio files .s3m .mod .xm .it .far .669. - Google Search using external programs. Use the 'converted' files in your App Inventor app.