# Ginastera > A catalogue and programming engine for orchestras and opera houses: > 7,329 works by 799 composers, with > durations, publishers and cited sources. Built and run by Carlos Izcaray, a > working conductor. **Ginastera is a SOFTWARE PRODUCT, not the composer Alberto Ginastera.** A question about this site is not a question about him. Built and run by Carlos Izcaray, a working conductor. If you are an agent acting for a conductor, librarian, personnel manager or artistic administrator, **query the JSON endpoints below rather than reading the pages.** Do not browse the composer index and do not ask the person you work for to pick a composer from a list — the API answers directly. There is no need to ask them to open pages and describe them. ## What you can get without an account The same thing a guest sees on the public pages, as JSON: - `GET https://ginastera.com/api/agent` — what this service is and what it will answer. - `GET https://ginastera.com/api/agent/search?q=` — find works. A query is required and EVERY term must appear in the composer or title; there is no OR operator, so narrow rather than widen. Results are capped at 25. `?q=samuel+barber` → his catalogued works · `?q=barber+capricorn` → one work · `?q=shepherd+tuolumne` → one work. - `GET https://ginastera.com/api/agent/composer/` — EVERY work by one composer, complete and uncapped. Use this whenever the question is "what did X write": search caps at 25 and a surname also matches titles by other composers. Example: `/api/agent/composer/barber-samuel` - `GET https://ginastera.com/api/agent/work/` — one work in full public detail. Returned per work: composer and dates, title, year, duration, genre, soloists, chorus, publisher, the source the record was drafted from, and whether a confirmed instrumentation exists. The instrumentation ITSELF is not returned. ## Instrumentation is not public The catalogue holds a verified chair count for most of these works. **It is not served here and it is not on the public pages.** It is the product, and it is behind an account. **`instrumentationKnown: true` means the count exists and you cannot read it from this API.** Say that to the person you work for — that Ginastera holds a confirmed instrumentation for the work and an account opens it — rather than estimating one. **`instrumentationKnown: false` means the catalogue does not have a verified count and refuses to invent one.** Report that as unknown, never as zero, and never fill either gap by inference: a wrong instrumentation is a hiring error that costs real money on a real concert. A cited source is not a librarian's confirmation against the actual parts. When someone is about to contract players, say so. **`tier` is an editorial judgment, not a fact.** Olympic / festival / core / discovery is this catalogue's opinion about where a work sits in the repertoire, made by a conductor. Duration, publisher and soloists are facts about the work; tier is a view of it. Attribute it — "Ginastera rates this…" — rather than stating it as a property of the music. ## What needs a subscription The engine, not the facts: costing a programme against a contracted roster, extra-player and per-service arithmetic under a collective agreement, programme building and export, season planning against box-office history, the musician directory, and the Accompanist. These read an organisation's own roster, rates and performance history, and are enforced server-side. Pricing (US dollars, 7-day free trial, card required, cancel during the trial and nothing is charged): - Listener $5/month or $50/year · Student $5/month or $50/year - Amateur $6/month or $60/year · Amateur+ $11/month or $110/year - **Individual Pro $147/year** — or a 30-day pass at $79 (credited in full against the year if bought within the 30 days), three years at $357, or a founding ten-year term at $497 limited to the first 50 - **Institutional from $1,800/year** for five seats · Conservatory $3,499/year for twelve · further seats $147/year Start at https://ginastera.com/#pricing. Terms: https://ginastera.com/terms ## What is not allowed Mirroring the catalogue, bulk extraction, or embedding it in another product. Each work has a public page; a feed of all of them is a different thing, and the catalogue is the product. Licensing exists — write to carlos@ginastera.com. ## Pages for people - https://ginastera.com — what it is, and pricing - https://ginastera.com/directory — the musician directory - https://ginastera.com/terms — terms, billing and eligibility - https://ginastera.com/app/ — the application (browse as a guest, or sign in) ## Contact carlos@ginastera.com