The Jewel of St Petersburg The Jewel of St Petersburg The Jewel of St Petersburg is a 2010 prequel to "The Russian Concubine" and "The Concubine's Secret" by Kate Furnivall. It is about Lydia Ivanova Friss's parents Valentina Ivanova and Jens Friss love, set against the backdrop of Russia. Valentina Ivanova was the daughter of the finance minister to Tsar Nicholas II and an aspiring pianist. She wanted to become a nurse after her younger sister Katya was paralysed from a Bolshevik's bomb. Her father wanted her to marry a Russian Count. Jens Friss was a Danish engineer who came to Russia. He became the
20th-century music had earlier been called race music, and country music. See also rock musical and rock opera. 20th-century music During the 20th century there was a huge increase in the variety of music that people had access to. Prior to the invention of mass market gramophone records (developed in 1892) and radio broadcasting (first commercially done ca. 1919–20), people mainly listened to music at live Classical music concerts or musical theatre shows, which were too expensive for many lower-income people; on early phonograph players (a technology invented in 1877 which was not mass-marketed until the mid-1890s); or by individuals performing music