On this day, the birthday of Ludwig van Beethoven [16/17 December], I've found yet another YouTube video upload purporting to be the pianist's performance in Belgrade in 1974 with conductor Zivojin Zdravkovic of Beethoven's Piano Concerto No. 4 in G major Op.58. I repeat what Noël [no surname] added to the Slipped Disc website: " It is Maria Tipo. This was a concert from the Belgrade Festival. Also on the programme was Debussy La Mer and Sofoson 1 by the Serbian composer, Br