What is B-flat major?
{{Infobox Scale | image_name=B-flat_Major_key_signature.png | scale_name=B{{music|flat}} major | relative=[[G minor]] | parallel=[[B-flat minor|B{{music|flat}} minor]] | first_pitch=B{{music|flat}} | second_pitch=C | third_pitch=D | fourth_pitch=E{{music|flat}} | fifth_pitch=F | sixth_pitch=G | seventh_pitch=A }} '''B{{music|flat}} major''' or '''B-flat major''' is a [[major scale]] starting on B-flat. Its [[key signature]] has two [[Flat (music)|flats]]. It has the pitches of [[B♭ (musical note)|B♭]], [[C (musical note)|C]], [[D (musical note)|D]], [[E♭ (musical note)|E♭]], [[F (musical note)|F]], [[G (musical note)|G]], [[A (musical note)|A]], and B♭. Its [[relative key|relative minor]] is [[G minor]], and its [[parallel key|parallel minor]] is [[B-flat minor|B{{music|flat}} minor]]. B-flat major is the home key of many [[wind instrument]]s, such as [[clarinet]]s, [[trumpet]]s, [[saxophone]]s, and [[flute]]s in B-flat. This means they can be played the most easily in this key. Because of this, many works for [[concert band]]s (those you might have played in while you were at school) are written in this key or a closely related one such as [[F major]] or [[E-flat major]]. [[Joseph Haydn|Haydn]]'s Symphony No. 98, which had both [[trumpet]] and [[timpani]], is known as the first symphony that anyone had written in that key. Actually, his brother [[Michael Haydn]] had written one earlier. However, Joseph Haydn still gets credit for writing the timpani part at actual pitch with an [[F major]] key signature (instead of [[transposing]] with a [[C major]] key signature), something that made things easier and made more sense.<ref>H. C. Robbins Landon, ''Haydn Symphonies'' London: British Broadcasting Corporation (1966): 57</ref> Five of [[Wolfgang Amadeus Mozart|Mozart]]'s [[piano]] [[concerto|concerti]] are in B-flat major. ==Well-known classical compositions in this key== * [[Brandenburg concertos|Brandenburg Concerto No. 6 (Bach)]] * [[Piano Concerto No. 15 (Mozart)]] * [[Piano Concerto No. 27 (Moza