Counterpoint
Parallel Fifths and Octaves: Why the Rule Exists
Parallel fifths and octaves are voices that move together and keep a perfect interval. Here is why strict voice leading forbids them and where the rule bends.
Topic
Counterpoint
Line against line — species, imitation, canon and fugue, and the rules that keep independent voices independent.
Counterpoint is the craft of writing independent melodic lines that work together. The articles here start with the intervallic framework of first species, extend it to imitation and invertible counterpoint, and use the fugue and its subject-answer relationship as the worked example of the whole discipline.
Counterpoint
Types of Motion in Voice Leading: Parallel, Contrary, Oblique
Parallel, similar, oblique and contrary motion defined between two voices, what each does to their independence, and which one counterpoint prefers.
Counterpoint
Canon Types and Techniques: Rounds to Crab Canons
Strict and free canon, interval and time distance, inversion and crab canons: how canons work and how to write a singable one.
Counterpoint
First Species Counterpoint, Rule by Rule
Species counterpoint isolates one compositional decision at a time. First species isolates the hardest one: how to make two voices sound like two voices.
Counterpoint
Fugue Subjects and Answers
A fugue's opening notes commit the piece to more than a tune. The subject's shape and the answer's adjustment decide what can happen next.
Counterpoint
Imitation and Invertible Counterpoint
Imitation makes one idea serve two lines. Invertible counterpoint makes those lines interchangeable, and the arithmetic behind it is small enough to check.
The ebook
Music Theory: the site as a book
The site's working library as a structured ebook: intervals, keys, harmony, counterpoint, rhythm, form, tuning, orchestration and the history behind them.
- 78 pages
- PDF format
- $2.87
- By The musics.name project
The Gumroad link opens the seller’s listing and checkout. Review the current total and purchase terms there; the free site does not require a purchase.
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