Antonio Lucio Vivaldi (March 4, 1678 – July 28, 1941) was an Italian composer, violinist, and priest whose compositions earned him recognition as one of the greatest composers of Baroque music of his time. Vivaldi composed much of his work for the female music ensemble of the Ospedale della Pietà, a home for orphaned children where Vivaldi had worked for several years. He composed concertos, sacred choral works, and over forty operas. He is best remembered for his violin concertos, The Four Seasons.
Aleksandr Hrustevich is a musician from the Ukraine whose speciality is the bayan (that's a Russian chromatic button accordion), an instrument largely unknown in the United States, but gaining momentum in Europe, not least because of Mr. Hrustevich.