The document provides biographical information on several famous musicians: - Johann Sebastian Bach was a highly influential German composer of the Baroque period known for works like the Brandenburg Concertos and Mass in B Minor. - Xian Xinghai was a pioneering Chinese composer who incorporated Western classical styles and is renowned for works like the Yellow River Cantata. - Wolfgang Mozart was a prolific composer of the Classical era in Vienna, composing celebrated symphonies, operas, and portions of his Requiem. - A.R. Rahman is an acclaimed Indian composer who has integrated Eastern classical and world music with electronic music, winning two Oscars and two Grammys. - Lata