Tools

justin

Practice dashboard

Pick a tool to start drilling. Your progress syncs across devices.

Overview and getting-started hub for the practice suite.

Blocked-practice chord drill with timer, stats, and AnkiConnect integration.

Practice 7-note minor-11 arpeggio cells with two-phase root and sequence drilling.

Drill one fixed chord or arpeggio idea across random roots in all 12 keys.

Review first-chord times, transition times, misses, and streaks over time.

Loop ii-V-I and 12-bar blues progressions with per-chord transition timing.

Daily technique habit tracker with metronome, BPM log, and a 28-day grid.

Interactive square-plate waveform explorer for the hero background shader.

Drive Chladni nodal patterns from live MIDI notes — pitch, octave, and velocity.

Interactive escape-time Julia set explorer with morphing complex parameters.

Interactive frequency-ratio curve explorer mapped to musical intervals.

Quasiperiodic Lab

Interactive N-fold wave interference explorer with Apply-to-home atmosphere.

De Bruijn multigrid dual tiling explorer — crisp grids and colored rhombus tilings.