U7 · Settings & devices

Devices & calibration, the drill-scope surface (the app's largest settings area, mirroring 02 §5 per-value), and the practice knobs.

Devices · the calibration ritual
FP-30X · USB
Devices
FP-30X · USB performance-trusted−12 ms · ±3 ms
FP-30X · Bluetooth rehearsal-trusted−24 ms · ±11 ms
FP-90X · USB performance-trusted−9 ms · ±2 ms
Calibrate this device
device settings live in the profile — switching or fixing a profile never touches your history
Device profiles. Latency and jitter per keyboard × transport, trust chips (USB performance-trusted, BLE rehearsal-trusted), and the profile principle in user words.
FP-30X · USB
Calibration~20 s
5/8
play along with the clicks — any key
♩ = 90
we measure your keyboard's delay and steadiness — grading adjusts automatically
The ritual, mid-flow. Eight clicks, ~20 seconds; the result card writes the profile.
Drill scope per-value toggles · honest consequences
FP-30X · USB
Chords scope8 of 9 on

qualities — tap to toggle

maj
min
dim
maj7
7
m7
m7♭5
dim7
aug+576 drills

hands

right
left
together

cues

from symbol
from staffhides 2,304 off
Drill scope. Tap-to-toggle chip grids — on is filled, off is hollow and states its honest consequence. Individual values, never bundles (02 §5); a lens, not a curriculum.
PracticeRatingsLibrarySettings
FP-30X · USB
Practice knobs
Retention target 0.85
Frontier appetite trickle
off
trickle
eager
Flash timeout 8 s
Swing ratio 2:1
Preview seconds 25
UI sounds on · 60%
Metronome volume 80%
Practice knobs. Retention (with a one-line explainer), appetite, the 02 §5 practice constants, and the UI soundfont controls — metronome volume separate.