OuterPractice for drummers observes posture, jaw, brow, blink rate, and ambient-audio onset patterns during practice, in the browser, and shows a calm timeline of observations when the session ends.
An external eye for the body you can't see while you play.
OuterPractice watches your posture, jaw, and timing during practice and shows you what it noticed when you stop. Browser only, nothing leaves your device.
What it tends to notice.
Real observations from the timeline — descriptions, never instructions. The meaning is left to you.
- "Your shoulders crept up gradually during the fast passage. Often a sign that the tempo is just a touch too high to stay relaxed."
- "Jaw tension increased steadily after bar 24. The pattern returned in the rerun."
- "Onset jitter widened in the second half. Often appears when fatigue starts to take over."
- "Blink rate dropped sharply during the focused passage — high attention, possible tunnel-vision."
What a session looks like.
Two body-state sliders before you start, a quiet live view while you play, a clickable timeline when you stop.
What it isn't.
- Not a metronome.
- Not a recording tool — no video, no raw audio persists.
- Not a teacher. It describes what it observed; it does not tell you how to play.
Drummer questions.
Does it work for piano, guitar, or voice?
The pose and face models work for any seated or standing musician. Tension patterns are currently tuned for drumming; other instruments fall back to generic baselines until a tuned profile is added.
Do I need an account?
No. Everything runs in your browser. Nothing is uploaded.
What about my privacy?
Camera and microphone feeds stay in the browser. Only derived feature vectors persist, in your local IndexedDB. See the privacy page for the full account.
Does it record my playing?
No video. No raw audio. Only the per-second derived feature vector — no waveform, no frames.
Is it free?
The musician side is free. There is no paid musician tier today — all observation features ship in the free app. Paid features may be added later for advanced use, but not yet.