Baroque · 1723
Two-Part Invention No. 1 in C major
J. S. BachBWV 772
- Key
- C
- Time
- 4/4
- Tempo
- ♩=84
- AO focus
- AO3
Incipit
Form
Invention — two-voice imitative counterpoint, motif inverted and transposed through closely related keys.
Teaching points
- Subject (bar 1, voice 1) and answer (bar 1.5, voice 2) — same motif, octave apart, half-bar offset
- Stretto: subject re-enters before the previous statement finishes
- Tonal plan: C → G (V) → A minor (vi) → C — closing perfect cadence at the end of the incipit