Ludwig van Beethoven was a German composer born in 1770 who was a pivotal figure in transitioning music from the Classical period to the Romantic era. Though going deaf later in life, he composed profoundly influential works including 9 symphonies, 5 piano concertos, and the choral symphony Symphony No. 9 from which the lyrics of "Ode to Joy" come. His works remain hugely popular and important today, with the length of his Symphony No. 9 even determining the capacity of the compact disc when it was invented.