03 / Creative tool

Practice Heatmap & Smart Metronome

A practice companion for logging music sessions, seeing consistency at a glance, and training with a smart metronome.

View source Node.js / Express / SQLite / Charts

Project preview

The challenge

Musicians need a simple way to turn practice sessions into actionable patterns without interrupting the practice itself.

What I built

Session logging with BPM, duration, and notes
Practice heatmap, streaks, and trend metrics
Metronome with optional automatic tempo ramping

Technical approach

An Express server exposes a lightweight sessions API backed by SQLite. A browser client uses that data to calculate dashboard metrics, render the heatmap, and coordinate metronome controls.

Key decisions

Store simple session records first, then derive streaks and averages at read time.
Keep metronome behaviour in the browser for immediate interaction and low server overhead.
Use a compact schema that is easy to migrate to cloud persistence later.

Demo status

Source available. Public live demo planned after cloud persistence is added.