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Simon Willison tested whether Claude Opus 5.5 could compose video game music through a simple text format, and the results were surprisingly good, prompting debate over whether text models have gained a new musical composition capability.

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Claude Opus 5.5 Composes Video Game Music: A New Text-Model Capability?

What happened

FAQ

What is Scrimshaw Jukebox?

It is an experimental tool built by Simon Willison after asking Claude Opus 5.5 to design a simple text-based music format and build an artifact that plays it out loud, including example tracks in a classic adventure-game style.

Can Claude Opus 5.5 actually compose music?

According to the published experiment, the model produced music that exceeded the author's expectations, but confirming this scientifically requires comparative tests with other recent and older models.

Is this a new capability for text models?

The source gives no definitive answer. Willison raises the hypothesis that it may be a capability that emerged in recent months, similar to the rise of 3D graphics abilities, but insists on controlled experiments.

Why does this matter for MENA tech teams?

Music composition capabilities could open possibilities for regional game and content studios, but the source does not discuss regional applications, so the value remains exploratory until local tests are run.

Source: Simon Willison (LLM & tools)

AI-assisted summary of the source above. High-confidence stories publish automatically; others wait for review. Facts that are not in the source are not added.