G-G-G-E flat, better known as "Ta-ta-ta-taaa", are perhaps the four most famous notes in all of classical music, four notes that almost the whole world knows. They form the opening motif of the 5th Symphony in C minor, Opus 67 by Ludwig van Beethoven. In various interpretations by Otto Klemperer, Michael Gielen, Stanislaw Skrowaczewski and Ádám Fischer, among others, the range of Beethoven's reception at the turn of the millennium is to be compared. At the end the whole symphony will be heard under Robert Trevino: Hear, discover and compare.