{
  "schema_version": 1,
  "projection": "envoy-agent-v1",
  "identity": {
    "title": "Roland CR-78 CompuRhythm 1970s - Black W.Midi",
    "brand": "Roland",
    "model": null,
    "mpn": null,
    "gtins": null,
    "handle": "gm-roland-cr-78-compurhythm-w-midi-roland-cr-78-compurhythm-1970s-black-w-c0f60d6c",
    "url": "https://envoy-music.myshopify.com/products/gm-roland-cr-78-compurhythm-w-midi-roland-cr-78-compurhythm-1970s-black-w-c0f60d6c",
    "catalog_product_id": "reverb_listing:95554364",
    "lane": "production",
    "product_object": "drum machines"
  },
  "offer": {
    "price": 3418.15,
    "currency": "CAD",
    "available": true,
    "condition": "Very Good",
    "price_band": "boutique",
    "source_verified_at": null
  },
  "specifications": {"type":"json","groups":[{"name":"Product facts","fields":[{"label":"Year Released","value":"1978","source":"https:\/\/soundprogramming.net\/drum-machines\/roland\/roland-compurhythm-cr-78\/"},{"label":"Preset Patterns","value":"34","source":"https:\/\/soundprogramming.net\/drum-machines\/roland\/roland-compurhythm-cr-78\/"}]},{"name":"Format and size","fields":[{"label":"ROM Size","value":"11 sounds","source":"https:\/\/soundprogramming.net\/drum-machines\/roland\/roland-compurhythm-cr-78\/"},{"label":"Weight","value":"5.5 kg","source":"https:\/\/soundprogramming.net\/drum-machines\/roland\/roland-compurhythm-cr-78\/"},{"label":"Dimensions","value":"300 mm x 280 mm x 205 mm","source":"https:\/\/soundprogramming.net\/drum-machines\/roland\/roland-compurhythm-cr-78\/"},{"label":"Dimensions note","value":"300 mm x 280 mm x 205 mm User Demo Videos","source":"https:\/\/soundprogramming.net\/drum-machines\/roland\/roland-compurhythm-cr-78\/"},{"label":"Format","value":"Eurorack","source":"https:\/\/envoy-music.myshopify.com\/products\/gm-roland-cr-78-compurhythm-w-midi-roland-cr-78-compurhythm-1970s-black-w-c0f60d6c"}]},{"name":"Power","fields":[{"label":"Power Consumption","value":"13 watts","source":"https:\/\/soundprogramming.net\/drum-machines\/roland\/roland-compurhythm-cr-78\/"},{"label":"Power","value":"1 votes) File Downloads Roland","source":"https:\/\/soundprogramming.net\/drum-machines\/roland\/roland-compurhythm-cr-78\/"}]}]},
  "connectivity": ["midi"],
  "power": null,
  "included_items": null,
  "required_accessories": ["keyboard stand","sustain pedal","headphones or amp"],
  "optional_accessories": null,
  "compatibility": null,
  "advisor": {
    "best_for": "Players matching the published factory\/retail specs listed above.",
    "who_should_skip": null,
    "fit_notes": "Verify power, format, and connectivity against your rig before purchase; only sourced fields are listed.",
    "watchouts": "Unsourced claims are omitted. Listing-specific mods, kits, or incomplete units may not match the base model specs.",
    "verification_questions": ["Can you confirm exactly what is included in the sale and show it in current photos?","Are there any functional issues, repairs, or missing parts not shown in the listing?","Can you provide close-up photos of wear points, serial numbers, and any modifications?","Can you confirm the core specs that matter for compatibility in this setup?","Is this still available and has anything changed since the listing was posted?"]
  },
  "retrieval": {
    "summary": "Roland CR-78 CompuRhythm 1970s - Black W.Midi. Roland. CR-78 CompuRhythm W\/Midi. Keyboards and Synths. Keyboards and Synths \/ Drum Machines. available from reverb. price range 2495 USD. condition Very Good. The CR-78 is a really great little box from Roland. It's a classic analog Rhythm Machine, not a drum machine, and was the first to use a microprocessor. It has 34 built in preset rhythm patterns which can be varied at the push of a button. These patterns include Rock, Disco, Waltz, Shuffle, Slow Rock, Swing, Fox Trot, Tango, etc... Some are cool, but the ability to vary them gives you some creative control. As for the drum sounds, the CR-78 offers 14 very electronic yet analog drum tones. Sounds include Kick, Snare, Rim, Cow Bell, HiHats, Cymbals, Congas, Bongos, Tambourine and Guiros. With 11 variation effects and the ability to adjust Tempo, accents, and fade in\/outs the CR-78 is still capable of producing nice rhythms for use in ambient, HipHop, dub, and other electronic forms of music.. Roland CR-78 CompuRhythm 1970s - Black W.Midi. Roland. CR-78 CompuRhythm W\/Midi. Black. Very Good. Keyboards and Synths. Keyboards and Synths \/ Drum Machines. The CR-78 is a really great little box from Roland. It's a classic analog Rhythm Machine, not a drum machine, and was the first to use a microprocessor. It has 34 built in preset rhythm patterns which can be varied at the push of a button. These patterns include Rock, Disco, Waltz, Shuffle, Slow Rock, Swing, Fox Trot, Tango, etc... Some are cool, but the ability to vary them gives you some creative control. As for the drum sounds, the CR-78 offers 14 very electronic yet analog drum tones. Sounds include Kick, Snare, Rim, Cow Bell, HiHats, Cymbals, Congas, Bongos, Tambourine and Guiros. With 11 variation effects and the ability to adjust Tempo, accents, and fade in\/outs the CR-78 is still capable of producing nice rhythms for use in ambient, HipHop, dub, and other electronic forms of music.. Rogue Music. New York, NY, United States. tags source:reverb family:keyboards_and_synths listing_status:live brand:roland model:cr_78_compurhythm_w_midi category:keyboards_and_synths_drum_machines price_band:premium segment:intermediate condition:very_good has:photos",
    "agent_summary": "Roland CR-78 CompuRhythm W\/Midi is a aimed at intermediate players keyboards and synths listing with marketplace-sourced data. Roland CR-78 CompuRhythm 1970s - Black W.Midi currently sits around 2495 USD. The CR-78 is a really great little box from Roland. Marketplace data is richer on listing context, but it needs more buyer verification. Positioned as a realistic step-up option for players leaving starter gear. Marketplace listing quality varies by seller, so condition and included items still need verification.",
    "intent_terms": ["Roland CR-78 CompuRhythm 1970s - Black W.Midi","Roland","CR-78 CompuRhythm W\/Midi","Keyboards and Synths","Keyboards and Synths \/ Drum Machines","brand:roland","category:keyboards_and_synths_drum_machines","condition:very_good","family:keyboards_and_synths","has:photos","listing_status:live","model:cr_78_compurhythm_w_midi","price_band:premium","segment:intermediate","source:reverb","brand roland","category keyboards and synths drum machines","condition very good","family keyboards and synths","has photos","listing status live","model cr 78 compurhythm w midi","price band premium","segment intermediate","source reverb","live-performance","tone-shaping","Rogue Music","Best suited to players who have outgrown their first setup and need a meaningful step up.","Shoppers who already understand the role of this keyboards and synths and want a more deliberate purchase."],
    "use_cases": ["studio-recording","live-performance","practice","sound-design"],
    "skill_level": "intermediate"
  },
  "trust": {
    "has_verified_retail_listing": true,
    "source_count": 1,
    "source_tier_mix": ["marketplace"],
    "evidence_flags": {"has_description":true,"has_images":true,"has_reviews":false,"has_specs":false,"source_count":1},
    "spec_provenance": {"specifications":{"source_url":"https:\/\/soundprogramming.net\/drum-machines\/roland\/roland-compurhythm-cr-78\/","method":"gear_universe_read_model","fetched":"2026-07-30"}}
  },
  "related": {
    "similar_item_ids": ["product_939b69d35d2deae5","product_a9cfc9751b32848c","product_655f55aa1863a450","product_6e309d6ffc3aee8d"],
    "comparison_reasons": ["source_count:1","family:Keyboards and Synths","marketplace_only","identity_confidence:0.9"]
}
}