"A faithful Guide, whereby admirers of the harpsichord are shown a plain Method of learning not only to play clean in two Parts, but likewise in further Progress to manage three obbligato Parts well and correctly, and at the same time not merely how to get good Inventions, but also how to develop the same well; but above all, to obtain a cantabile Style of playing, and together with this to get a strong Foretaste of Composition."
The inventions were composed in Cöthen; the sinfonias, on the other hand, were probably not finished until the beginning of the Leipzig period.
► INVENTIONS
01. Inventio I in C, BWV 772
02. Inventio II in c, BWV 773
03. Inventio III in D, BWV 774
04. Inventio IV in d, BWV 775
05. Inventio V in Eb, BWV 776
06. Inventio VI in E, BWV 777
07. Inventio VII in e, BWV 778
08. Inventio VIII in F, BWV 779
09. Inventio IX in f, BWV 780
10. Inventio X in G, BWV 781
11. Inventio XI in g, BWV 782
12. Inventio XII in A, BWV 783
13. Inventio XIII in a, BWV 784
14. Inventio XIV in Bb, BWV 785
15. Inventio XV in b, BWV 786
► SINFONIAS
01. Sinfonia I in C, BWV 787
02. Sinfonia II in c, BWV 788
03. Sinfonia III in D, BWV 789
04. Sinfonia IV in d, BWV 790
05. Sinfonia V in Eb, BWV 791
06. Sinfonia VI in E, BWV 792
07. Sinfonia VII in e, BWV 793
08. Sinfonia VIII in F, BWV 794
09. Sinfonia IX in f, BWV 795
10. Sinfonia X in G, BWV 796
11. Sinfonia XI in g, BWV 797
12. Sinfonia XII in A, BWV 798
13. Sinfonia XIII in a, BWV 799
14. Sinfonia XIV in Bb, BWV 800
15. Sinfonia XV in b, BWV 801