This is a simple sequencer to chain play patterns on the Roland SH-4d. Connect the pattern and treat it as a song mode.

It works based on the MIDI clock of SH-4d on a web browser, and It can work with other rhythm boxes by setting Program Change MSB/LSB.

• Chromium-based browser such as Microsoft Edge.
• Firfox

The "Install this site as an application" feature of Microsoft Edge is useful.

Safari does not work because it does not support Web MIDI API.

• SYSTEM SETTINGS - TEMPO/SYNC - Sync Out - USB
• SYSTEM SETTINGS - MIDI - Ctrl Ch - 16

https://h1romas4.github.io/sh4d-chain/

https://twitter.com/h1romas4/status/1728675955554848963

Local

git clone https://github.com/h1romas4/sh4d-chain
cd sh4d-chain
npm install
npm run dev

Deploy

# "--base" for GitHub Pages context path
# This is not necessary when deployed as root.
npm run build -- --base=/sh4d-chain
# ls -laF dist/

Linux Snap

Some web browsers running on Linux Snap may not work due to permissions.

• firefox-snap Use alsa plug to interact with MIDI devices

MIT License