April 6, 1974 -- Final night of the Eurovision Song Contest [1h50m, auf Deutsch (but music is the universal language)] If you don't want the full, stuffy context, you can watch the winning performance. (You already know who won... ) And watch them perform again after they were named winners. [more inside]
Benny Andersson & orgeln med 9000 pipor (58m, in Swedish, English, German, no subtitles that aren't from the Swedish TV source) presents the newly-built Organ Acusticum in the Studio Acusticum concert hall to Swedish television audiences. Performances include ABBA's Dancing Queen (with Benny on piano accompanied by the organ) and the premier of Benny's new composition specifically for this event En skrift i snön performed with Orsa Spelmän and choir. Lyrics can be found here (scroll down, Google Translate of lyrics).
CHESS MOVES [27m14s] was a 1985 VHS release hosted by Sir Tim Rice comprising of the five music videos made to promote the 1984 album Chess. The individual videos are One Night In Bangkok (Murray Head), Nobody's Side (Elaine Paige), The Arbiter (Björn Skifs), I Know Him So Well (Elaine Paige & Barbara Dickson), and Pity The Child (Murray Head). [more inside]