Developer builds Commodore 64-style music generator with Grok Build

On August 22, as Grok's Build feature officially launched in the Android Grok app, a professional film composer (@DigitalColmer) immediately used it to develop a "Rob Hubbard-style" music generation app and published it within the Grok app.

Confirmed

• The app generates music based on the Commodore 64 SID chip sound library/sound sources
• The goal is to imitate the style of 1980s classic game composer Rob Hubbard
• The entire development was done in the Grok app on an Android phone, using the newly launched Build feature
• The app has been published in the Android Grok app

Why it matters

• The author being a professional film composer shows that creative professionals who aren't full-time programmers can quickly turn ideas into concrete products with Grok Build
• The case demonstrates a "rapid idea-to-working-app" workflow, a representative early-user practice after Grok Build's launch

2026-08-22 ~ 2026-08-22 · 5 related posts

• Using Grok Build to create a Commodore 64 style music composer app — DigitalColmer · 2026-08-22
• Developer uses Grok to create C64-style music generator app — DigitalColmer · 2026-08-22

3 near-duplicate retellings: DigitalColmer · DigitalColmer · DigitalColmer