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Make implicit arpeggio grouping and root reduction musically defensible

enhancementNew feature or requestNew feature or request

research

Status: Open.

Task

#73 In get-flashbacks/feedback-plugin-difficulty-ladder;

· carochacs opened on Aug 18, 2026

Separate phrase challenge, ladder depth, and retention priority

enhancementNew feature or requestNew feature or request

research

Status: Open.

Task

#72 In get-flashbacks/feedback-plugin-difficulty-ladder;

· carochacs opened on Aug 18, 2026

Define mastery-change origin and note-judgment finalization contracts

Status: Open.

Bug

#65 In get-flashbacks/feedback-plugin-difficulty-ladder;

· carochacs opened on Aug 18, 2026

Adaptive difficulty Phase 4: Decision — adopt/defer per revised decision rule

Status: Open.

Task

#57 In get-flashbacks/feedback-plugin-difficulty-ladder;

· carochacs opened on Aug 16, 2026

Adaptive difficulty Phase 3: Human benchmark on real player sessions

Status: Open.

Task

#56 In get-flashbacks/feedback-plugin-difficulty-ladder;

· carochacs opened on Aug 16, 2026

Adaptive difficulty Phase 2: Simulation-first PoC (synthetic players, estimator tracking error)

Status: Open.

Task

#55 In get-flashbacks/feedback-plugin-difficulty-ladder;

· carochacs opened on Aug 16, 2026

Adaptive difficulty Phase 1: Literature review (Elo/Glicko, explanatory IRT, Kalman, flow/challenge-point)

Status: Open.

Task

#54 In get-flashbacks/feedback-plugin-difficulty-ladder;

· carochacs opened on Aug 16, 2026

Note-grouping is super-linear on large charts; /generate-library processes up to 2000 packs per call

security

Status: Open.

Task

#40 In get-flashbacks/feedback-plugin-difficulty-ladder;

· carochacs opened on Aug 6, 2026

/generate and /generate-library are unauthenticated state-mutating routes

security

Status: Open.

Task

#38 In get-flashbacks/feedback-plugin-difficulty-ladder;

· carochacs opened on Aug 6, 2026

Research: Adaptive difficulty — resolve the item-difficulty confound (Elo/IRT) and evaluate time-varying filtering (Kalman)

adaptive-difficulty

research

Status: Open.

Task

#31 In get-flashbacks/feedback-plugin-difficulty-ladder;

· carochacs opened on Jul 31, 2026

Passive "mastery streak" indicator on the glass-filling HUD

enhancementNew feature or requestNew feature or request

questionFurther information is requestedFurther information is requested

Status: Open.

Feature

#25 In get-flashbacks/feedback-plugin-difficulty-ladder;

· carochacs opened on Jul 31, 2026

Direction-asymmetric auto-adjust step size (larger down, smaller up)

enhancementNew feature or requestNew feature or request

questionFurther information is requestedFurther information is requested

Status: Open.

Feature

#24 In get-flashbacks/feedback-plugin-difficulty-ladder;

· carochacs opened on Jul 31, 2026