Keep DX7 parity probes out of patch library

patches/dx7/algorithm-8-cascade-probe.aqua

@@ -1,51 +0,0 @@
-# DX7 algorithm 8 cascade probe
-# Family: dx7
-# Source: project-authored Dexed parity probe
-# Notes: Isolates the 6 -> 5 -> 3 cascaded modulation branch backing the topology-aware summed/cascaded route scale.
-
-patch
-    gain=1.4
-    soft_clip=false
-
-opgraph
-    name=dx7_algorithm8_cascade_probe
-    freq=261.6256
-    gain=0.25
-
-operator name=op6
-    ratio=4
-    level=0.229251
-    env=rl rates=0.00248,0.00248,0.00248,0.00248 levels=1,1,1,0 gate=0.45
-
-operator name=op5
-    ratio=2
-    level=0.32421
-    env=rl rates=0.00248,0.00248,0.00248,0.00248 levels=1,1,1,0 gate=0.45
-
-operator name=op4
-    ratio=1
-    level=0.000188
-    feedback=0
-    env=rl rates=0.00248,0.00248,0.00248,0.00248 levels=1,1,1,0 gate=0.45
-
-operator name=op3
-    ratio=1
-    level=3
-    env=rl rates=0.00248,0.00248,0.00248,0.00248 levels=1,1,1,0 gate=0.45
-
-operator name=op2
-    ratio=1
-    level=0.000188
-    env=rl rates=0.00248,0.00248,0.00248,0.00248 levels=1,1,1,0 gate=0.45
-
-operator name=op1
-    ratio=1
-    level=0.000565
-    env=rl rates=0.00248,0.00248,0.00248,0.00248 levels=1,1,1,0 gate=0.45
-
-route from=op6 to=op5 index=6
-route from=op4 to=op3 index=6
-route from=op5 to=op3 index=6
-route from=op2 to=op1 index=6.275
-carrier name=op1
-carrier name=op3

patches/dx7/algorithm-8-summed-pair-probe.aqua

@@ -1,51 +0,0 @@
-# DX7 algorithm 8 summed-pair probe
-# Family: dx7
-# Source: project-authored Dexed parity probe
-# Notes: Isolates the 4 + 5 -> 3 summed modulation branch backing the topology-aware summed/cascaded route scale.
-
-patch
-    gain=1.4
-    soft_clip=false
-
-opgraph
-    name=dx7_algorithm8_summed_pair_probe
-    freq=261.6256
-    gain=0.25
-
-operator name=op6
-    ratio=1
-    level=0.000188
-    env=rl rates=0.00248,0.00248,0.00248,0.00248 levels=1,1,1,0 gate=0.45
-
-operator name=op5
-    ratio=2
-    level=0.32421
-    env=rl rates=0.00248,0.00248,0.00248,0.00248 levels=1,1,1,0 gate=0.45
-
-operator name=op4
-    ratio=1
-    level=0.385553
-    feedback=0
-    env=rl rates=0.00248,0.00248,0.00248,0.00248 levels=1,1,1,0 gate=0.45
-
-operator name=op3
-    ratio=1
-    level=3
-    env=rl rates=0.00248,0.00248,0.00248,0.00248 levels=1,1,1,0 gate=0.45
-
-operator name=op2
-    ratio=1
-    level=0.000188
-    env=rl rates=0.00248,0.00248,0.00248,0.00248 levels=1,1,1,0 gate=0.45
-
-operator name=op1
-    ratio=1
-    level=0.000565
-    env=rl rates=0.00248,0.00248,0.00248,0.00248 levels=1,1,1,0 gate=0.45
-
-route from=op6 to=op5 index=6
-route from=op4 to=op3 index=6
-route from=op5 to=op3 index=6
-route from=op2 to=op1 index=6.275
-carrier name=op1
-carrier name=op3

patches/library.yaml

@@ -82,16 +82,6 @@ entries:
     name: "Algorithm 8 bright pair"
     source: "BuiltInScripts.ReferenceScripts"
     notes: "Stock reference patch exported from the in-code catalog."
-  - path: patches/dx7/algorithm-8-cascade-probe.aqua
-    family: dx7
-    name: "Algorithm 8 cascade probe"
-    source: "Project-authored Dexed parity probe"
-    notes: "Isolates 6 -> 5 -> 3 cascaded modulation."
-  - path: patches/dx7/algorithm-8-summed-pair-probe.aqua
-    family: dx7
-    name: "Algorithm 8 summed-pair probe"
-    source: "Project-authored Dexed parity probe"
-    notes: "Isolates 4 + 5 -> 3 summed modulation."
   - path: patches/dx7/public-domain-mc-mm-5-3.aqua
     family: dx7
     name: "Public-domain MC-MM 5-3"

state/evidence.jsonl

@@ -45,3 +45,4 @@
 {"kind":"dx7_summed_route_scale_hotter","lesson":"Follow-up listening and band analysis showed the previous summed/cascaded scale still sounded underwater. Raising `Dx7SysEx.SummedOperatorModulationRouteIndex` to 6.0 and normalizing PRC graph gain to 0.25 improves PRC to log-mel 0.13874426, envelope distance 0.067291506, RMS ratio 0.9912135, zero-crossing ratio 0.95325506, centroid ratio 1.1156512, score 0.7546445. A hotter 7.0 scale did not buy enough log-mel improvement and worsened RMS/score, so 6.0 is the current coherent stop.","source":"DX7 stacked modulation brightness hot sweep on 2026-05-14"}
 {"kind":"patch_library","lesson":"Repo-owned Aquarium .aqua stock now lives under patches/ with library.yaml; every .aqua must parse/export in tests and the patch library must remain out of AquariumSynth.Dsl.nupkg unless intentionally promoted.","source":"Patch library folder slice on 2026-05-14"}
 {"kind":"dx7_algorithm8_split_route_parity","lesson":"The DX7 summed/cascaded route scale 6.0 is now backed by split project-authored algorithm-8 rendered probes, not only PRC or one combined stack. Latest real-Dexed run: combined stack log-mel 0.04029555 score 0.8664546, summed pair log-mel 0.042429477 score 0.870778, cascade log-mel 0.03811625 score 0.9157809. Keep isolated direct branches at 6.275 and summed/cascaded branches at 6.0 until broader evidence contradicts it.","source":"Split algorithm-8 parity probes on 2026-05-14"}
+{"kind":"patch_library_taste","lesson":"Not every parity probe belongs in the patch library. Harsh project-authored DX7 calibration probes should stay in tests and ignored listening artifacts unless they are musically useful stock; the navigable .aqua library is for reusable inspiration, not measurement torture signals.","source":"User listening correction on 2026-05-14"}

state/scratch.md

@@ -27,10 +27,9 @@ Completed this slice:
   - summed pair: log-mel `0.042429477`, score `0.870778`
   - cascade: log-mel `0.03811625`, score `0.9157809`
 - Project-authored DX7 parity tests now write listening WAVs and reports under
-  `artifacts/parity/dx7-project-authored/<probe>/`.
+  `artifacts/parity/dx7-project-authored/<probe>/`. These split probes are
-- Added the split probe scripts to the patch library:
+  intentionally not part of the patch library: they are useful measuring tools,
-  `patches/dx7/algorithm-8-cascade-probe.aqua` and
+  not pleasant or reusable stock.
-  `patches/dx7/algorithm-8-summed-pair-probe.aqua`.
 - Verified with bundled Python/dexed-py:
   `AQUARIUM_DX7_PYTHON=<bundled python> dotnet test AquariumSynthCSharp.slnx --no-restore`:
   69 passed.

state/spine.yaml

@@ -144,8 +144,9 @@ completed_slices:
       listening WAV/report artifacts under `artifacts/parity/dx7-project-authored/`,
       and gate log-mel at <= 0.06. Latest real-Dexed run: combined stack
       log-mel 0.04029555/score 0.8664546, summed pair 0.042429477/0.870778,
-      cascade 0.03811625/0.9157809. Promoted the two split probe scripts into
+      cascade 0.03811625/0.9157809. The split probes remain test/artifact
-      `patches/dx7/` and indexed them in `patches/library.yaml`.
+      material rather than patch-library stock because they are calibration
+      signals, not usable sounds.
     verification: "AQUARIUM_DX7_PYTHON=<bundled python> dotnet test AquariumSynthCSharp.slnx --no-restore: 69 passed"
   - date: 2026-05-14
     summary: >