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Nothing's strange, it's just some kind of ЕСКД fonts or a similar one:

http://nstu.berdsk.ru/metod/ebook/grafica/grafica/eskd/eskd/GOST/2_304/007.gif

Lyrics? Where's lyrics in MP3 file format? iRiver players support Russian ID3 tags and you can read text in Russian from them (I have IFP995 model which is pretty old).