While some scholars suggest that Haydn was overshadowed by Mozart and Beethoven, it would be difficult to overstate Haydn's centrality to the new style, and therefore to the future of Western art music as a whole. At the time, before the pre-eminence of Mozart or Beethoven, and with Johann Sebastian Bach known primarily to connoisseurs of keyboard music, Haydn reached a place in music that set him above all other composers except perhaps the Baroque era's George Frideric Handel. Haydn took existing ideas, and radically altered how they functioned—earning him the titles "father of the symphony" and "father of the string quartet".