"This very popular tune in many countries also has several variants of the title: "Letkajenkka", "Letkis", "Letkiss", "Jenkka", "Jenka", "Yenka", "Летка-енка", etc. [There's no point in offering all the spellings of the title)]
+ the home amateur & concert professional vocal & instrumental performances with different accompanement and the variations of the performances.Even the sounding of different types of aacordion (including bayan [=Russian button accordion] and harmonica) can be different..
But alas, too few performances are presented on the Internet. And I never managed to find a close sounding as in the sample.
You can slowly do it yourself :) (according to the available titles) and choose the sounding that you'll like the most :)
In the meantime, just a couple of examples of sounding in accompaniment with accordions: