[FIX] Wrap 2026-09-11: session record, index rotation, PENDING-89 docket entry

- Session record session-2026-09-11-filed-before-built-and-the-d821-reading.md.
  Pulling thread: an addendum's owner is decided by where it sits, not by
  what it says.
- MEMORY.md: the 09-10 Active Session demoted verbatim to MEMORY-reference.md
  and today's promoted (23,591 -> 23,325 bytes; still over the 17.1 KB
  warning, and compaction by relocation is owed).
- PENDING-89: a docket entry for 2026-09-11 with an id-bearing heading, placed
  inside the item's span (L449, checked against the PENDING-90 boundary). It
  records the jurist's §6b disposition miss, caught by the executor, and the
  Tamestit claim, which the brief's own 'unverified' label contained. Not
  counted.
- knowledge-graph.jsonl: six triples (two drift patterns, two preventions,
  the Seb reply, the Zehetmair lineage).
- skill-harvest register: proposals E (verify-quotes reads HTML/PDF), F
  (source-report skill, first instance) and G (shell-alias note, labelled
  documentation), plus a second instance of B.
- Tarbuckle tracker: PENDING-184 and PENDING-182 ADDENDA 1-2.
- Ledger, and the Zehetmair section of the teachers memory.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PJM5fwqp456LDGzqiZXsgu

claude/memory/user-formation-practice-honoring-teachers.md

@@ -56,3 +56,18 @@ The steward's verbatim and the thinking now live in **`09. Atlas of Roots/Themes
 This file keeps its own job — firing the rule at the moment it applies during a session — and is
 not a second copy of the claim. If the two ever disagree about what the steward said, the vault
 note governs and this one is corrected.
+
+---
+
+## Violin lineage — Helmut and Thomas Zehetmair (added 2026-09-11)
+
+Steward verbatim (2026-09-11):
+
+> *"Both he and his son Thomas have been a huge influence on my playing and thinking. I will purchase the rest of the volumes as they will be needed for my pedagogical treatise."*
+
+- **"He"** is Helmut Zehetmair, co-author with Benjamin Bergmann of *Systematische Violintechnik: Die Bausteine des Violinspiels* (Schott). The steward holds **Band 1** (*Bogen-, Saiten- und Fingerwechsel*, ED 21161, 2013) as a licensed Schott PDF. It is at `~/Desktop/__Desktop capture inbox-to process/PPP Comparison/zehetpdf/1.pdf`.
+- **The later volumes** are to be bought as sources for his **pedagogical treatise**. By Band 1's own plan (p. 4), they cover position changes and combinations of the several changes.
+- **Band 1's thesis** is that *Wechsel* are *Verbindungen*: the changes of bow, string and finger are really connections between notes. Its connection principles are applied, as interpretation, to the D821 rondo in §6 of the report at `06. Projects/Chamber Orchestra of Europe/2026/`.
+- **How to apply:** receive the Zehetmairs as teachers in the sense of this file, not as 'references'.
+  - Do not assume whether the steward studied with either in person; that has not been said.
+  - The folder name 'PPP Comparison' suggests the volume is already being read against *Pattern, Presence, Practice*. That is an inference from a folder name, not confirmed.