Probably not. :P
Tchaikovsky played piano, which was one of the prerequisites to studying music at the Moscow Conservatory. Most theory students even today are required to learn piano.
They influenced the music we have today.
yes - still very popular today
Piano
Pop, hip-hop, and RB are the most popular genres in today's music industry.
beer
Leo Delibes is the composer of Sylvia and is considered the inventor of what we know today as Ballet music, Tchaikovsky even claimed that Sylvia was better than his own Swan Lake.
Some popular musical genres in today's music industry include pop, hip-hop, RB, rock, and electronic dance music (EDM).
Some popular acapella singers in the music industry today include Pentatonix, Home Free, and Straight No Chaser.
The most popular BPM in today's music industry is around 120-130 beats per minute.
Lounge music was a popular music genre in the 1950s and 1960s. It is often easy listening music which is still used in many golf clubs and casinos today.
Some popular genres of music among young adults today include pop, hip-hop, rap, RB, electronic dance music (EDM), and indie.