• Book by bach on how to make a fugue
• How to compose a simple fugue in the style of JS bach
• When subject is in tonic, answer in dominant key.
• We will not use an exact transposition.

§ Ideas: How to Write a fugue

• Video
• Start with a melodic line (e.g. E in bass)
• Repeat melodic line (e.g. B in treble)
• Reiterate the subject fifth higher, an answer.
• Then go down a fifth (minor), a counter answer.
• Switch the key.
• Use suspensions to "reposition" voices across chords.
• Invert the subject.
• Change modes! (modal imitation).
• Raise everything by a tone / major 3rd / ...

§ References

• Harmony, counterpoint, partimento: a new method inspired by old masters by Job IJzerman.
• The first contrapicture: Book by back
• Fugue by ebenezer prout