Anki decides what to drill. Your hands prove you know it.

Reading a chord chart again and again feels productive, but it barely moves the needle. Retrieving an answer from memory — forcing yourself to produce it, not just recognize it — is what actually strengthens the memory. Spacing those retrievals out over days, instead of cramming them into one sitting, is what makes the memory last.

↳ retrieval practice roughly doubled week-later retention over re-reading (Roediger & Karpicke, 2006)

Anki's job is to know, chord by chord, exactly when you're about to forget it — and put it back in front of you right before that happens. Its modern engine, FSRS, builds a model of your personal memory from your review history, so the schedule adapts to you instead of a fixed formula. This drill doesn't reinvent that — it just listens to whatever Anki already decided you need next.

Flashcards are excellent at teaching you to namea chord. They're not built to teach your hands to find it, under time pressure, without looking. That's a different kind of memory — motor memory — and it needs a different kind of rep: hands off the keys, chord announced, play it, get timed.

This tool is that missing half. Anki keeps the recall side sharp; the drill keeps the physical side honest.

Turn on Anki Sync and the loop runs on its own — no manual chord picking, no separate app to babysit.

Drilling a voicing through every root, in time, until it stops requiring thought, is the standard route from theory to fluency in jazz piano — not a shortcut around it. This tool just puts a stopwatch and a spaced-repetition schedule underneath a practice habit that already exists.

Two ready-to-import decks: root-position 7ths and diminished 7ths across five keys (C-G-D-A-E), and the extended 9/11/13 voicings with LH/RH fingering built in. Both are plain tab-separated Anki exports — import via Anki's File → Import (Basic notetype), no add-on beyond AnkiConnect needed to use them with this drill.