...that, in the 1940s, the female fans of the Soviet tenor Sergei Lemeshev often quarrelled with the fans of his rival, Ivan Kozlovsky?
...that an unknown manuscript of opera libretto by writer Mikhail Bulgakov was found in Isaak Dunayevsky's archive after his death in 1955?
...that the symphony said to have been written in 1809 by Ukrainian landowner Mykola Ovsianiko-Kulikovsky was later proven to be a hoax?
... that the Agung, a Philippine set of gongs, was repeatedly hit during earthquakes for it was believed its supernatural powers would halt the earth's reverberations?
...that the first performance of Glinka's opera A Life for the Tsar (1836) was conducted by Catterino Cavos, who composed an opera on the same subject 20 years before Glinka?
...that composer Veniamin Fleishman was killed at the beginning of the Second World War before he could complete his opera Rothschild's Violin, but that his teacher Dmitri Shostakovich rescued his sketches from besieged Leningrad and completed the opera?
...that the music of Ornette Coleman, John Coltrane, and Arnold Schoenberg inspired the jazz-guitarist Ralph Patt to invent major-thirds tuning?