# IMSLP Public Domain Sheet Music Scraper (`jungle_synthesizer/imslp-public-domain-sheet-music-scraper`) Actor Scrape the full IMSLP public-domain score catalog — 230k+ works across 24k composers, with file URLs, copyright tags, and work metadata via the IMSLP worklist API and MediaWiki API. - **URL**: https://apify.com/jungle\_synthesizer/imslp-public-domain-sheet-music-scraper.md - **Developed by:** [BowTiedRaccoon](https://apify.com/jungle_synthesizer) (community) - **Categories:** Education, For creators - **Stats:** 2 total users, 1 monthly users, 100.0% runs succeeded, NaN bookmarks - **User rating**: No ratings yet ## Pricing Pay per event This Actor is paid per event. You are not charged for the Apify platform usage, but only a fixed price for specific events. Learn more: https://docs.apify.com/platform/actors/running/actors-in-store#pay-per-event ## What's an Apify Actor? Actors are a software tools running on the Apify platform, for all kinds of web data extraction and automation use cases. In Batch mode, an Actor accepts a well-defined JSON input, performs an action which can take anything from a few seconds to a few hours, and optionally produces a well-defined JSON output, datasets with results, or files in key-value store. In Standby mode, an Actor provides a web server which can be used as a website, API, or an MCP server. Actors are written with capital "A". ## How to integrate an Actor? If asked about integration, you help developers integrate Actors into their projects. You adapt to their stack and deliver integrations that are safe, well-documented, and production-ready. The best way to integrate Actors is as follows. In JavaScript/TypeScript projects, use official [JavaScript/TypeScript client](https://docs.apify.com/api/client/js.md): ```bash npm install apify-client ``` In Python projects, use official [Python client library](https://docs.apify.com/api/client/python.md): ```bash pip install apify-client ``` In shell scripts, use [Apify CLI](https://docs.apify.com/cli/docs.md): ````bash # MacOS / Linux curl -fsSL https://apify.com/install-cli.sh | bash # Windows irm https://apify.com/install-cli.ps1 | iex ```bash In AI frameworks, you might use the [Apify MCP server](https://docs.apify.com/platform/integrations/mcp.md). If your project is in a different language, use the [REST API](https://docs.apify.com/api/v2.md). For usage examples, see the [API](#api) section below. For more details, see Apify documentation as [Markdown index](https://docs.apify.com/llms.txt) and [Markdown full-text](https://docs.apify.com/llms-full.txt). # README ## IMSLP Public Domain Sheet Music Scraper Walk the full IMSLP catalog and pull structured data on 230,000+ musical works, 24,000+ composers, and their associated score files — all public-domain by construction. IMSLP has two public APIs. This scraper uses both. The worklist API delivers the complete work index at 1,000 records per page. The MediaWiki API fills in per-work details: key, genre, instrumentation, composition year, and the file manifest with direct PDF download links. You can run fast (worklist-only, no detail calls) or complete (full enrichment). Both modes respect the site's request etiquette. ### What You Get Each record covers one musical work. | Field | Type | Description | |-------|------|-------------| | `work_id` | string | IMSLP/MediaWiki page ID | | `work_title` | string | Work title as listed on IMSLP | | `composer` | string | Composer full name | | `composer_slug` | string | IMSLP category identifier | | `opus_catalogue` | string | Op., BWV, K., or other catalogue number | | `genre` | string | Piece style and genre (e.g. "Baroque — fugues") | | `instrumentation` | string | Scored for (e.g. "piano", "2 violins, viola, cello") | | `key` | string | Musical key | | `composition_year` | string | Year or date of composition | | `first_publication` | string | Year of first publication | | `score_files` | string | JSON array of score PDFs with filename, description, file URL, copyright, editor | | `parts_files` | string | JSON array of parts PDFs (same structure) | | `arrangements` | string | JSON array of arrangement PDFs (same structure) | | `copyright_status` | string | Copyright tag from IMSLP (almost always "Public Domain") | | `license` | string | Specific license | | `imslp_url` | string | Canonical IMSLP work page URL | | `scraped_at` | string | ISO 8601 timestamp | File arrays are JSON-encoded strings. Each entry has: `filename`, `description`, `editor`, `copyright`, `file_url`. ### Input | Parameter | Type | Default | Description | |-----------|------|---------|-------------| | `maxItems` | integer | 10 | Maximum works to return | | `includeFileDetails` | boolean | true | Fetch MediaWiki API for file lists, key, genre, instrumentation. Disable for faster bulk exports — you get the catalog skeleton without per-work details. | | `composerFilter` | string | — | Optional composer name filter (e.g. "Bach, Johann Sebastian"). Leave blank for the full catalog. | ### File Detail Mode When `includeFileDetails` is enabled, the scraper makes one additional MediaWiki API call per work to parse the work's wikitext. This populates `score_files`, `parts_files`, `arrangements`, `instrumentation`, `key`, `genre`, `composition_year`, and `first_publication`. It also adds ~200ms per record to the run time. For full-catalog exports where you only need the work index, disable it. ### Coverage IMSLP's public-domain mandate is not a coincidence. The library was built specifically to host scores where the copyright has expired or been dedicated to the public domain. The `copyright_status` field reflects IMSLP's own tagging — but the corpus is the corpus because legal reviews are baked in at submission time. Score file URLs point to `imslp.org/wiki/Special:ReverseLookup/`, which resolves to the PDF download. These are the same URLs end users click in the IMSLP UI. ### Use Cases - Build a searchable public-domain score database - Feed OMR (optical music recognition) or generative music training pipelines - Music education platforms that need structured work metadata - Digital library catalogs with direct PDF access - Composer or instrumentation research at scale ### Data Volume The full catalog is approximately 230,000 works. Without a composer filter and with `includeFileDetails` enabled, a complete run takes several hours due to polite pacing between MediaWiki API calls. Use `composerFilter` to scope to a specific composer, or set `includeFileDetails: false` for a fast full-catalog index run. --- *Built by [OrbTop](https://orbtop.com). Data sourced from [IMSLP](https://imslp.org) via its public APIs.* # Actor input Schema ## `sp_intended_usage` (type: `string`): Please describe how you plan to use the data extracted by this crawler. ## `sp_improvement_suggestions` (type: `string`): Provide any feedback or suggestions for improvements. ## `sp_contact` (type: `string`): Provide your email address so we can get in touch with you. ## `maxItems` (type: `integer`): Maximum number of works to scrape (across the full IMSLP catalog) ## `includeFileDetails` (type: `boolean`): When enabled, fetches per-work detail from the MediaWiki API to populate file lists (score_files, parts_files, arrangements), instrumentation, key, genre, and copyright_status. Adds one API call per work — disable for faster bulk catalog exports. ## `composerFilter` (type: `string`): Optional. Filter works to a specific composer. Use the IMSLP composer name format, e.g. "Bach, Johann Sebastian" or "Beethoven, Ludwig van". Leave blank to scrape the full catalog. ## Actor input object example ```json { "sp_intended_usage": "Describe your intended use...", "sp_improvement_suggestions": "Share your suggestions here...", "sp_contact": "Share your email here...", "maxItems": 10, "includeFileDetails": true } ```` # Actor output Schema ## `results` (type: `string`): No description # API You can run this Actor programmatically using our API. Below are code examples in JavaScript, Python, and CLI, as well as the OpenAPI specification and MCP server setup. ## JavaScript example ```javascript import { ApifyClient } from 'apify-client'; // Initialize the ApifyClient with your Apify API token // Replace the '' with your token const client = new ApifyClient({ token: '', }); // Prepare Actor input const input = { "sp_intended_usage": "Describe your intended use...", "sp_improvement_suggestions": "Share your suggestions here...", "sp_contact": "Share your email here...", "maxItems": 10, "includeFileDetails": true, "composerFilter": "" }; // Run the Actor and wait for it to finish const run = await client.actor("jungle_synthesizer/imslp-public-domain-sheet-music-scraper").call(input); // Fetch and print Actor results from the run's dataset (if any) console.log('Results from dataset'); console.log(`💾 Check your data here: https://console.apify.com/storage/datasets/${run.defaultDatasetId}`); const { items } = await client.dataset(run.defaultDatasetId).listItems(); items.forEach((item) => { console.dir(item); }); // 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/js/docs ``` ## Python example ```python from apify_client import ApifyClient # Initialize the ApifyClient with your Apify API token # Replace '' with your token. client = ApifyClient("") # Prepare the Actor input run_input = { "sp_intended_usage": "Describe your intended use...", "sp_improvement_suggestions": "Share your suggestions here...", "sp_contact": "Share your email here...", "maxItems": 10, "includeFileDetails": True, "composerFilter": "", } # Run the Actor and wait for it to finish run = client.actor("jungle_synthesizer/imslp-public-domain-sheet-music-scraper").call(run_input=run_input) # Fetch and print Actor results from the run's dataset (if there are any) print("💾 Check your data here: https://console.apify.com/storage/datasets/" + run["defaultDatasetId"]) for item in client.dataset(run["defaultDatasetId"]).iterate_items(): print(item) # 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/python/docs/quick-start ``` ## CLI example ```bash echo '{ "sp_intended_usage": "Describe your intended use...", "sp_improvement_suggestions": "Share your suggestions here...", "sp_contact": "Share your email here...", "maxItems": 10, "includeFileDetails": true, "composerFilter": "" }' | apify call jungle_synthesizer/imslp-public-domain-sheet-music-scraper --silent --output-dataset ``` ## MCP server setup ```json { "mcpServers": { "apify": { "command": "npx", "args": [ "mcp-remote", "https://mcp.apify.com/?tools=jungle_synthesizer/imslp-public-domain-sheet-music-scraper", "--header", "Authorization: Bearer " ] } } } ``` ## OpenAPI specification ```json { "openapi": "3.0.1", "info": { "title": "IMSLP Public Domain Sheet Music Scraper", "description": "Scrape the full IMSLP public-domain score catalog — 230k+ works across 24k composers, with file URLs, copyright tags, and work metadata via the IMSLP worklist API and MediaWiki API.", "version": "0.1", "x-build-id": "lohtpq0yanfuayUAs" }, "servers": [ { "url": "https://api.apify.com/v2" } ], "paths": { "/acts/jungle_synthesizer~imslp-public-domain-sheet-music-scraper/run-sync-get-dataset-items": { "post": { "operationId": "run-sync-get-dataset-items-jungle_synthesizer-imslp-public-domain-sheet-music-scraper", "x-openai-isConsequential": false, "summary": "Executes an Actor, waits for its completion, and returns Actor's dataset items in response.", "tags": [ "Run Actor" ], "requestBody": { "required": true, "content": { "application/json": { "schema": { "$ref": "#/components/schemas/inputSchema" } } } }, "parameters": [ { "name": "token", "in": "query", "required": true, "schema": { "type": "string" }, "description": "Enter your Apify token here" } ], "responses": { "200": { "description": "OK" } } } }, "/acts/jungle_synthesizer~imslp-public-domain-sheet-music-scraper/runs": { "post": { "operationId": "runs-sync-jungle_synthesizer-imslp-public-domain-sheet-music-scraper", "x-openai-isConsequential": false, "summary": "Executes an Actor and returns information about the initiated run in response.", "tags": [ "Run Actor" ], "requestBody": { "required": true, "content": { "application/json": { "schema": { "$ref": "#/components/schemas/inputSchema" } } } }, "parameters": [ { "name": "token", "in": "query", "required": true, "schema": { "type": "string" }, "description": "Enter your Apify token here" } ], "responses": { "200": { "description": "OK", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/runsResponseSchema" } } } } } } }, "/acts/jungle_synthesizer~imslp-public-domain-sheet-music-scraper/run-sync": { "post": { "operationId": "run-sync-jungle_synthesizer-imslp-public-domain-sheet-music-scraper", "x-openai-isConsequential": false, "summary": "Executes an Actor, waits for completion, and returns the OUTPUT from Key-value store in response.", "tags": [ "Run Actor" ], "requestBody": { "required": true, "content": { "application/json": { "schema": { "$ref": "#/components/schemas/inputSchema" } } } }, "parameters": [ { "name": "token", "in": "query", "required": true, "schema": { "type": "string" }, "description": "Enter your Apify token here" } ], "responses": { "200": { "description": "OK" } } } } }, "components": { "schemas": { "inputSchema": { "type": "object", "required": [ "maxItems" ], "properties": { "sp_intended_usage": { "title": "What is the intended usage of this data?", "minLength": 1, "type": "string", "description": "Please describe how you plan to use the data extracted by this crawler." }, "sp_improvement_suggestions": { "title": "How can we improve this crawler for you?", "minLength": 1, "type": "string", "description": "Provide any feedback or suggestions for improvements." }, "sp_contact": { "title": "Contact Email", "minLength": 1, "type": "string", "description": "Provide your email address so we can get in touch with you." }, "maxItems": { "title": "Max Items", "type": "integer", "description": "Maximum number of works to scrape (across the full IMSLP catalog)", "default": 10 }, "includeFileDetails": { "title": "Include File Details", "type": "boolean", "description": "When enabled, fetches per-work detail from the MediaWiki API to populate file lists (score_files, parts_files, arrangements), instrumentation, key, genre, and copyright_status. Adds one API call per work — disable for faster bulk catalog exports.\n", "default": true }, "composerFilter": { "title": "Composer Filter", "type": "string", "description": "Optional. Filter works to a specific composer. Use the IMSLP composer name format, e.g. \"Bach, Johann Sebastian\" or \"Beethoven, Ludwig van\". Leave blank to scrape the full catalog.\n" } } }, "runsResponseSchema": { "type": "object", "properties": { "data": { "type": "object", "properties": { "id": { "type": "string" }, "actId": { "type": "string" }, "userId": { "type": "string" }, "startedAt": { "type": "string", "format": "date-time", "example": "2025-01-08T00:00:00.000Z" }, "finishedAt": { "type": "string", "format": "date-time", "example": "2025-01-08T00:00:00.000Z" }, "status": { "type": "string", "example": "READY" }, "meta": { "type": "object", "properties": { "origin": { "type": "string", "example": "API" }, "userAgent": { "type": "string" } } }, "stats": { "type": "object", "properties": { "inputBodyLen": { "type": "integer", "example": 2000 }, "rebootCount": { "type": "integer", "example": 0 }, "restartCount": { "type": "integer", "example": 0 }, "resurrectCount": { "type": "integer", "example": 0 }, "computeUnits": { "type": "integer", "example": 0 } } }, "options": { "type": "object", "properties": { "build": { "type": "string", "example": "latest" }, "timeoutSecs": { "type": "integer", "example": 300 }, "memoryMbytes": { "type": "integer", "example": 1024 }, "diskMbytes": { "type": "integer", "example": 2048 } } }, "buildId": { "type": "string" }, "defaultKeyValueStoreId": { "type": "string" }, "defaultDatasetId": { "type": "string" }, "defaultRequestQueueId": { "type": "string" }, "buildNumber": { "type": "string", "example": "1.0.0" }, "containerUrl": { "type": "string" }, "usage": { "type": "object", "properties": { "ACTOR_COMPUTE_UNITS": { "type": "integer", "example": 0 }, "DATASET_READS": { "type": "integer", "example": 0 }, "DATASET_WRITES": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_READS": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_WRITES": { "type": "integer", "example": 1 }, "KEY_VALUE_STORE_LISTS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_READS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_WRITES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_INTERNAL_GBYTES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_EXTERNAL_GBYTES": { "type": "integer", "example": 0 }, "PROXY_RESIDENTIAL_TRANSFER_GBYTES": { "type": "integer", "example": 0 }, "PROXY_SERPS": { "type": "integer", "example": 0 } } }, "usageTotalUsd": { "type": "number", "example": 0.00005 }, "usageUsd": { "type": "object", "properties": { "ACTOR_COMPUTE_UNITS": { "type": "integer", "example": 0 }, "DATASET_READS": { "type": "integer", "example": 0 }, "DATASET_WRITES": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_READS": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_WRITES": { "type": "number", "example": 0.00005 }, "KEY_VALUE_STORE_LISTS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_READS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_WRITES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_INTERNAL_GBYTES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_EXTERNAL_GBYTES": { "type": "integer", "example": 0 }, "PROXY_RESIDENTIAL_TRANSFER_GBYTES": { "type": "integer", "example": 0 }, "PROXY_SERPS": { "type": "integer", "example": 0 } } } } } } } } } } ```