1. Chapter 10: The Late Baroque: Bach

2. Johann Sebastian Bach (1685-1750) Career: – Weimer (1708-1717), organist – Cöthen (1717-1723), court composer, conductor – Leipzig (1723-1750), cantor Reputation – Renowned as an organ virtuoso – Most famous for cantatas and fugues – Greatest composer of counterpoint

3. Fugue A composition with three or more parts, vocal or instrumental Begins with successive statements of the subject Continues with alternations of subject and episodes Subject: Theme; primary musical idea Exposition: Opening section where each voice presents the subject Episode: Free sections where the subject is not heard in its entirety

4. Organ Fugue in G Minor (c. 1710) Written while Bach was court organist and chamber musician for the duke of Weimar Four voices: soprano, alto, tenor, bass Subject conveys a sense of gathering momentum Use of a pedal point: a note, usually in the bass, that is sustained while harmonies change around it

5. Bach’s Orchestral Music At Cöthen, Bach turned his attention from organ music for the church to instrumental music for the court Wrote the bulk of his orchestral scores Prince of Cöthen had assemble an “all-star” orchestra

6. The Brandenburg Concertos (1715-1721) Presented to prospective employer Margrave Christian Ludwig of Brandenburg Set of concerto grossi Brandenburg Concerto No. 5 – Concertino of solo violin, flute, harpsichord – Separation between tutti and concerto not so distinct – Ritornello has many characteristics of late Baroque melody – Use of cadenza: a showy passage for soloist alone toward the end of a movement in a concerto – Expanded length

7. The Church Cantata 1723, Bach assumed the position of cantor of Saint Thomas’s Church and choir school in Leipzig – Job was to organize music for the four principal churches of the city, play organ at weddings and funerals, teach the boys in the choir – Compose new music each Sunday and for religious holidays Church cantata: Multimovement scared work including arias, ariosos, and recitatives, performed by vocal soloists, chorus, and a small accompanying orchestra – Musical soul of the Lutheran Sunday service – Bach wrote almost 300 cantatas, about 200 survive today – Bach would conduct from the keyboard

8. Wacht auf, ruft uns die Stimme (Awake, A Voice is Calling, 1731) Written for the Sunday before Advent Text from the Gospel of Matthew Based on a traditional chorale of the Lutheran church – Chorale: A spiritual melody or religious folk song of the Lutheran church Seven movements 1 234567 Chorus chorale 1 st stanza RecitativeAria (duet) Chorus chorale 2 nd stanza RecitativeAria (duet) Chorus chorale 1 st stanza

9. Bach’s Later Keyboard Works The Well-Tempered Clavier (1720-1742) – Reflects newer tuning system in which all half steps were equidistant in pitch – Two sets of 24 Preludes and Fugues, one in each of the 12 major and 12 minor keys – Prelude: A short preparatory piece that sets a mood and serves as a technical warm-up before the fugue The Art of Fugue (1742-1750) – An encyclopedic treatment of all known contrapuntal procedures – 19 canons and fugues – Final fugue subject derived from his name: Bb-A-C-B  – Bach’s final musical work, left incomplete