Authoritative Urtext edition of Johann Sebastien Bach's Brandenburg Concerto No.5 in D Major BWV 1050. Includes the ''Early Version'' BWV 1050a.The six Brandenburg Concertos BWV 1046-1051 prized jewels of the world's musical heritage were written in 1721 during Bach?s appointment in Cöthen. Of the six works Bach originally wrote earlier versions of numbers 1 and 5 which differ not only with regard to articulation but also at times different tones different rhythms instrumentation and of course form. These Urtext publications taken from the New Bach Edition now give performers the possibility toplay these earlier versions perhaps even along side the version known today.