Ein Feste Burg - Mov.2

- 2 soloists, upper strings and continuo

- Oboe doubles the soprano line

- Vocal parts are treated independently - bass has virtuosic part, while soprano sings version of 2nd verse of Luther's chorale

- Upper strings in unison

- Orchestral introduction sets an energetic tone

- Bass starts the aria and has a solo (Bar 19)

- Tonic key is D major 

- Modulations to closely related keys: Dominant (Bar 4), Subdominant (Bar 5)

- Clear re-establishment of D major with music from intro

- Perfect cadences reinforce modulations

- Circle of 5ths (43-44) adds sense of movement to harmonic rhythm

- Continuo is harmonically charged

- Melody dominated homophony

- Soprano and bass have contrapuntal texture

- Soprano and oboe have heterophonic texture

- Built around CANTUS FIRMUS, heard in SOPRANO

- Trills in soprano and oboe 

- Bass line is scalic and fluid

- 4/4 metre

- Moto perpetuo semiquavers in accompianiment

- Off beat rhythms create restlessness

- Use of more intricate rhythm patterns -e.g demisemiquavers, dotted rhythms