{
  "schema_version": 1,
  "projection": "envoy-agent-v1",
  "identity": {
    "title": "MELLOTRON M4000D Black — Synthesizer",
    "brand": "MELLOTRON",
    "model": "M4000D Black",
    "mpn": null,
    "gtins": null,
    "handle": "ca-mellotron-m4000d-black-987ff43b28",
    "url": "https://envoy-music.myshopify.com/products/ca-mellotron-m4000d-black-987ff43b28",
    "catalog_product_id": "catalog:1c64cd95a3ec",
    "lane": "production",
    "product_object": "digital mellotron keyboard"
  },
  "offer": {
    "price": 4915.0,
    "currency": "CAD",
    "available": true,
    "condition": "Brand New",
    "price_band": "boutique",
    "source_verified_at": "2026-07-10T23:56:52Z"
  },
  "specifications": {"category":"production","subcategory":"production","category_path":"production","groups":[{"id":"format","label":"Format","fields":[{"key":"product_type","label":"Product type","value":"Digital Mellotron keyboard","display":"Digital Mellotron keyboard","source":"Mellotron Digital Mellotron page","confidence":0.9},{"key":"audio_engine","label":"Audio engine","value":"24-bit uncompressed digital audio playback","display":"24-bit uncompressed digital audio playback","source":"Mellotron Digital Mellotron page","confidence":0.9},{"key":"sound_library","label":"Sound library","value":"About 100 built-in Mellotron and Chamberlin sounds from original first-generation tape library","display":"About 100 built-in Mellotron and Chamberlin sounds from original first-generation tape library","source":"Mellotron Digital Mellotron page","confidence":0.9},{"key":"expansion","label":"Expansion","value":"Expansion slot for 100 additional sounds on special compact flash cards","display":"Expansion slot for 100 additional sounds on special compact flash cards","source":"Mellotron Digital Mellotron page and Mellotron Factory M4000D page","confidence":0.9}]},{"id":"keyboard_and_interface","label":"Keyboard and Interface","fields":[{"key":"keyboard","label":"Keyboard","value":"Custom full Mellotron-style wooden keyboard","display":"Custom full Mellotron-style wooden keyboard","source":"Mellotron Digital Mellotron page","confidence":0.9},{"key":"expression","label":"Expression","value":"Depth sensitivity; polyphonic aftertouch via MIDI out","display":"Depth sensitivity; polyphonic aftertouch via MIDI out","source":"Mellotron Digital Mellotron page and Mellotron Factory M4000D page","confidence":0.9},{"key":"displays","label":"Displays","value":"Two high-quality TFT displays","display":"Two high-quality TFT displays","source":"Mellotron Digital Mellotron page","confidence":0.9},{"key":"panel","label":"Panel","value":"Backlit laser-cut front panel","display":"Backlit laser-cut front panel","source":"Mellotron Digital Mellotron page","confidence":0.9}]},{"id":"connections_and_physical","label":"Connections and Physical","fields":[{"key":"audio_outputs","label":"Audio outputs","value":"A, B and Master outputs; balanced XLR and unbalanced 1\/4-inch line connectors","display":"A, B and Master outputs; balanced XLR and unbalanced 1\/4-inch line connectors","source":"Mellotron Factory M4000D product page","confidence":0.9},{"key":"pedal_connections","label":"Pedal connections","value":"1\/4-inch sustain, expression and volume pedal connections plus headphones","display":"1\/4-inch sustain, expression and volume pedal connections plus headphones","source":"Mellotron Factory M4000D product page","confidence":0.9},{"key":"midi","label":"Midi","value":"MIDI in, out and thru","display":"MIDI in, out and thru","source":"Mellotron Factory M4000D product page","confidence":0.9},{"key":"finish_option","label":"Finish option","value":"Black cabinet option","display":"Black cabinet option","source":"Mellotron Digital Mellotron page and Mellotron Factory M4000D product page","confidence":0.9}]}]},
  "connectivity": ["midi","xlr"],
  "power": null,
  "included_items": null,
  "required_accessories": ["compatible power and data connections","monitoring or MIDI setup as required"],
  "optional_accessories": null,
  "compatibility": null,
  "advisor": {
    "best_for": "Keyboardists and studios wanting Mellotron and Chamberlin tape-library sounds in a playable digital hardware instrument with full-size cabinet format.",
    "who_should_skip": "Users needing a compact module, weighted piano-action controller, workstation synthesis engine or inexpensive sample plug-in alternative.",
    "fit_notes": "The Black version appears to be a finish option for the same M4000D hardware platform.",
    "watchouts": "GTIN was not found; verify current finish\/cabinet options and regional availability before ordering.",
    "verification_questions": ["What firmware, software, storage, and synchronization features are supported by this exact model?","Which power supply, adapters, and included accessories ship with the retailer offer?","Will its audio, MIDI, and computer connections fit the intended setup without additional hardware?","Is the item still in stock at the displayed price, and what is the complete delivered cost to the intended destination?"]
  },
  "retrieval": {
    "summary": "M4000D Black is a electronic-music production instrument represented by 1 current Canadian retailer offer, starting at 4915.00 CAD. Best suited to producers who understand how it will connect to their current sequencing and performance workflow. EnvoyMusic has verified the source price and availability signal, but has not independently verified every technical specification or US fulfillment detail. This is an verified retail listing reference, not inventory stocked or fulfilled by EnvoyMusic. Retailer price and availability can change; recheck the source before making a purchase decision. Skip it until workflow, synchronization, software, storage, I\/O, and power requirements are confirmed.",
    "agent_summary": "MELLOTRON M4000D Black — Synthesizer. visible colors: black, white, silver. visible controls: rotary knobs, push buttons. panel text: KEYS MODE; OCTAVE; VOLUME; TUNE; PITCH.",
    "intent_terms": ["production","music_production","sequencing","live_performance","M4000D Black","MELLOTRON","Synths","verified retail listing","electronic-music production instrument","music production","live performance"],
    "use_cases": ["studio-recording","live-performance","sound-design"],
    "skill_level": "intermediate"
  },
  "trust": {
    "has_verified_retail_listing": true,
    "source_count": 1,
    "source_tier_mix": ["retailer"],
    "evidence_flags": {"external_inventory":true,"source_availability":true,"source_price":true,"source_url":true,"structured_specs":false},
    "spec_provenance": {"specifications":{"source_url":"https:\/\/www.mellotron.com\/digital-mellotron.html","method":"gear_universe_read_model","fetched":"2026-07-21"}}
  },
  "related": {
    "similar_item_ids": [],
    "comparison_reasons": ["source_count:1","lane:production","verified retail listing_reference"]
}
}