Orchestral 500 does not ask an AI to "write a symphony". It interviews you about the music you want, researches the period, and compiles the answers into coordinated instructions for your generator.
Start with Renaissance, Early or Late Baroque, Classical or Romantic. Every later answer, every instrument list and every exclusion is filtered by the period you pick, so nothing anachronistic slips in.
Speed, mood, composer lens, ensemble and player count, structural tier, venue, instrumental focus, then a bundled fine-controls question for harmony, articulation, dynamics, tuning and stereo placement. One question at a time, numbered options to pick from.
Any question accepts Research selects — the assistant chooses what the historical record supports — or Choose for me and answer the rest, which fills every remaining answer in one move. You can also type your own answer, and step back to edit any earlier choice.
Before writing anything, the tool gathers at least five documented sources on the forms, instruments, tuning and performance practice of your period and ensemble. Findings are logged with what was documented, what was inferred, what is conventional and what is creative licence.
Lyrics (a bracketed instrumental arrangement map, opening in silence), Style (front-loaded period, tempo, ensemble and recording language), Exclusions (permanent bans plus era-specific ones such as valved brass in Baroque), and Title last. Each block has its own Copy button.
Paste each block into the matching field of your AI music generator, then adjust there. Results vary by generator, membership level and the options that generator exposes — the prompt gives it the strongest possible starting instructions.
A full set takes a little while to come back. There is a great deal going on under the hood — period research, format validation and a silent regeneration if any rule is broken — which is what separates this from a basic prompt generator.