JosephBrian: What I was able to gather from my quick search for Pysch-Ops by the Soviet Union in WWII. There was not one record played but an assortment of Tango music played along with propaganda directed at the Germans that resistance was futile and that they should surrender. This was broadcast on large loudspeakers during the night and in lulls in the fighting. I'm not sure if it was a wire tape that had the recorded music and speeches or if it was a commissar of propaganda with a record player connected to the public address system. The broadcasts were in German reportedly spoken by German communist defectors.

There is the famous occurrence in Leningrad of Dmitri Shostakovich's symphony #7. Shostakovich wrote the symphony between 1939 and 1940. He originally dedicated it to Vladimir Lenin but later changed his mind and dedicated it to the city of Leningrad in 1941. The symphony had it's first première 5 March, 1942 but more famously it was premièred in Leningrad 9 August, 1942 performed by the Leningrad Radio Orchestra while the city was still under siege. The performance was broadcast on loudspeakers throughout the city as well as to the German forces surrounding the city. The Soviet commander of the Leningrad front General Govorov, ordered a bombardment of German artillery positions in advance to ensure their silence during the performance of the symphony.

Tango music was a popular art form in Russia during the early part of the 20th century and this proceeded into the Soviet era. It was also a popular form of music in Germany during the same period. The Tango music at Stalingrad has been described as "sinister." Here are a few examples of what may have been played and I'll let you be the judge if it makes you want to surrender.

Russian:

German:

[ame="http://www.youtube.com/watch?v=pz49w8dButw"]Soviet tango of 1934: Sokolskij - Sierce (The Heart) - YouTube[/ame][ame="http://www.youtube.com/watch?v=xN-QUEGgkDA"]Tango "Scrivimi" - (2/3) in Russian, Izabella Yurieva - YouTube[/ame][ame="http://www.youtube.com/watch?v=qOnU-TRRmSE"]Polish tango in Soviet Russia - Utomlennoe solntse, 1936 - YouTube[/ame][ame="http://www.youtube.com/watch?v=WMXhiTgSzIE"]Tango from Russia: Pyotr Leshchenko - Wino Lubwi, 1936 - YouTube[/ame][ame="http://www.youtube.com/watch?v=huQd-PJLYzA"]Alla Bayanova Tango "Volga"/ Early recording - YouTube[/ame][ame="http://www.youtube.com/watch?v=W5WDhkxL-0w"]??, ??? ????? ?? ???? 1930s Russian Tango ??????? ?????? - YouTube[/ame][ame="http://www.youtube.com/watch?v=sLyJ7huIkjw"]???? ?????? ???????? Tango Jalousie Jealousy - YouTube[/ame][ame="http://www.youtube.com/watch?v=AbBLChHcsck"]L.Monosson - a polyglot (5/5) - 'Russischer Tango' - YouTube[/ame][ame="http://www.youtube.com/watch?v=vf4KqOidkxA"]German Tango: Hilden-Arnoldt Tanz-Orch. -Tango Notturno, 1937 - YouTube[/ame][ame="http://www.youtube.com/watch?v=IeHzZrStMx8"]Zarah Leander- Zigeuner, Du hast mein Herz gestohlen (Tango) - YouTube[/ame][ame="http://www.youtube.com/watch?v=J50izGlM2Bo"]German Tango: Hör' mein Lied, Violetta - Will Glahé Tanz-Orchester, c. 1937 - YouTube[/ame]