Bradford Alexander "Brad" Mehldau (/ˈmɛlˌdaʊ/; born August 23, 1970) is an American jazz pianist, composer, and arranger. Mehldau studied music at The New School from 1988 to around 1993. He was a member of saxophonist Joshua Redman's Quartet with bassist Christian McBride and drummer Brian Blade in the mid 1990s, and has led his own trio since 1992. His first long-term trio featured bassist Larry Grenadier and drummer Jorge Rossy; in 2005 Jeff Ballard replaced Rossy. These bands have released a dozen albums under the pianist's name.From the early 2000s Mehldau branched out from trio and solo piano playing. A 2002 album, Largo, contained electronics and direct input from rock and classical musicians; later examples include touring and recording with guitarist Pat Metheny, writing and playing song cycles for classical singers Renée Fleming and Anne Sofie von Otter, composing orchestral pieces, and playing electronic keyboard instruments in a duo with drummer Mark Guiliana.Aspects of pop, rock, and classical music, including German Romanticism, have been absorbed into Mehldau's writing and playing. Through his use of some traditional elements of jazz without being restricted by them, simultaneous playing of different melodies in separate hands, and incorporation of pop and rock pieces, Mehldau has influenced musicians in and beyond jazz in their approaches to writing, playing, and choice of repertoire.