On the video, I have credited the song to Gene Raskin (1909–2004) who supplied English words and made it into a big hit for Mary Hopkin in the 1960s. My Essex Music Inc. edition (1968) fails to mention the piece's origin in a Russian song—"Дорогой длинною"—by Boris Fomin (1900-1948). For more information on the (sometimes horrific) history of this song and its uses and covers, see:
http://en.wikipedia.org/wiki/Those_Were_the_Days_%28song%29
And for much more information on Mary Hopkin, see this interesting fan site:
http://homepage.ntlworld.com/pat.richmonds/mhmenu.htm

This version is the type of low-key extemporisation I might provide late at night at a function when the guests are enjoying coffees and brandies!
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Played by Phillip Sear
http://www.psear.co.uk (Email: piano4@psear.33mail.com
WhatsApp: http://wa.me/441444483794 )