Files
kennethreitz ce93f429a2 Add Knowledge: the vault's reference shelf, crosslinked across the site
Publish the Obsidian vault's Knowledge folder as /knowledge (881 notes,
67 folders), with a Knowledge item in the nav and footer.

- scripts/import_knowledge.py regenerates data/knowledge from the vault:
  slugged paths, folder notes as index pages, wikilinks resolved to site
  links (or plain text), callouts, highlights, and Dataview tables
  rendered statically. Personal notes are withheld via an exclusion
  list plus a privacy guard.
- tuftecms/core/knowledge.py builds a concept index from note titles and
  aliases. First mentions on ordinary pages link to their Knowledge note
  (capped, never in headings, code, links, or sidenotes); Knowledge pages
  list related notes and where they're mentioned across the site; other
  pages get a Related Knowledge block.
- Knowledge URLs join sitemap.xml (so the sweep test covers them), never
  displace existing legacy slugs, list alphabetically, and mermaid
  diagrams render client-side only on pages that have them.
2026-10-18 20:08:46 -04:00

3.3 KiB

description, source
description source
When Beethoven wrote in A♭ major he knew it was the key of the grave — and knew his audience knew it too. obsidian-knowledge

Musical Keys

When Beethoven wrote in A♭ major he knew it was the key of the grave — and knew his audience knew it too.


Affective Key Characteristics

The association of musical keys with specific emotional or qualitative characteristics was fairly common prior to the 20th century. It was part of the shared cultural experience of those who made, performed, and listened to music. When Mozart or Beethoven or Schubert wrote a piece in A♭ major, for example, they were well aware that this was the "key of the grave," and knew that many in their audiences were as well. We lose a part of the meaning of their music if we are ignorant of their affective choices.

Although these characteristics were, of course, subjective, it was possible to conceive of each key as unique because each key actually sounded distinct within unequal temperaments. When equal temperament became the dominant tuning after 1917, the aural quality of every key became the same, and so these affective characteristics are mostly lost to us.

One of the most influential descriptions shared in German-speaking cultures in the late 18th and early 19th centuries came from Christian Schubart's Ideen zu einer Ästhetik der Tonkunst (1806). Each key page below carries his characterization, in Rita Steblin's translation (A History of Key Characteristics in the 18th and Early 19th Centuries, UMI Research Press, 1983).


Major Keys

C Major · D♭ Major · D Major · E♭ Major · E Major · F Major · F♯ Major · G Major · A♭ Major · A Major · B♭ Major · B Major

Minor Keys

C Minor · C♯ Minor · D Minor · D♯ Minor · E Minor · F Minor · F♯ Minor · G Minor · A♭ Minor · A Minor · B♭ Minor · B Minor


  • Major — the major keys at a glance
  • Minor — the minor keys at a glance
  • Music Hub
  • Music Background — twenty-plus years at the kit and in production