. . . . . . . . . . . . . "The Brandenburg Concertos by Johann Sebastian Bach (BWV 1046\u20131051, original title: Six Concerts \u00E0 plusieurs instruments) are a collection of six instrumental works presented by Bach to Christian Ludwig, Margrave of Brandenburg-Schwedt, in 1721 (though probably composed earlier). They are widely regarded as some of the best orchestral compositions of the Baroque era."@en .