{ "agent_meta": { "type": "agent_product", "schema": "mcc_agent", "schema_version": "1.1", "generated_at": "2026-11-07", "source_of_truth": "MCC Commerce Engine" }, "request_context": { "language": { "id_lang": 2, "iso_code": "en", "url_prefix": "\/en\/" }, "delivery_country": { "id_country": 0, "iso_code": false }, "currency": { "id_currency": 1, "iso_code": "EUR", "name": "Euro", "symbol": "\u20ac" }, "complete": true }, "context_switching": { "available": true, "mode": "on_demand_resolver", "stateless": true, "resolver": "links.agent.contexts", "fetch_when": "requested_context_differs", "dimensions": [ "language", "delivery_country", "currency" ], "unspecified_dimensions": "preserve_request_context", "selection": { "match": "exact", "source": "available_contexts", "result": "available_contexts[].target_url" }, "target": { "resource": "product", "id_product": 72 }, "full_context_in_target_url": true, "requires_session_persistence": false, "manual_url_construction_allowed": false, "instruction": "When a requested language, delivery country or currency differs from request_context, fetch links.agent.contexts. Preserve dimensions not explicitly changed by the user, select the exact matching entry and follow target_url unchanged." }, "platform": { "name": "MCC Agentic Commerce", "version": "1.0", "commerce_engine": "MCC Commerce Engine", "agent_interface": "MCC Agentic API" }, "instructions": { "purpose": "This endpoint provides the complete machine-readable representation of one product in the active language, delivery-country and currency context.", "rules": [ "All prices, taxes, availability and actions in data.product apply only to request_context.", "When variants exist, select the matching entry from data.product.variant_offers and use its exact price, availability and action URL.", "Do not infer a variant price from the product-level price or from another variant.", "Use the exact action.url supplied by the selected offer. Do not construct add-to-cart URLs manually.", "When language, delivery country or currency must change, fetch links.agent.contexts and follow the exact matching target_url unchanged.", "Prices, taxes, inventory and availability are calculated by the shop.", "Do not invent unavailable product, variant, price, stock, shipping or checkout information." ] }, "capabilities": { "root": true, "sitemap": true, "search": true, "product": true, "contexts": true, "category": true, "cart": true, "cms_page": false, "checkout": false }, "links": { "self": "https:\/\/musiccraft-instruments.com\/en\/mcc\/mcc_agent\/product?id_product=72&setCountry=0&setCurrency=1", "agent": { "root": "https:\/\/musiccraft-instruments.com\/en\/mcc\/mcc_agent\/root?setCountry=0&setCurrency=1", "sitemap": "https:\/\/musiccraft-instruments.com\/en\/mcc\/mcc_agent\/sitemap?setCountry=0&setCurrency=1", "search": "https:\/\/musiccraft-instruments.com\/en\/mcc\/mcc_agent\/search?setCountry=0&setCurrency=1", "cart": "https:\/\/musiccraft-instruments.com\/en\/mcc\/mcc_agent\/cart?setCountry=0&setCurrency=1", "product": "https:\/\/musiccraft-instruments.com\/en\/mcc\/mcc_agent\/product?id_product=72&setCountry=0&setCurrency=1", "contexts": "https:\/\/musiccraft-instruments.com\/en\/mcc\/mcc_agent\/contexts?resource=product&id_product=72&setCountry=0&setCurrency=1" }, "human": { "home": "https:\/\/musiccraft-instruments.com\/", "sitemap": "https:\/\/musiccraft-instruments.com\/en\/sitemap", "search": "https:\/\/musiccraft-instruments.com\/en\/search", "product": "https:\/\/musiccraft-instruments.com\/en\/p\/concerto-steel-octave-harmonica-72.html", "cart": "https:\/\/musiccraft-instruments.com\/en\/order", "contact": "https:\/\/musiccraft-instruments.com\/en\/contact-us" } }, "commerce_model": { "pricing": "server_calculated", "tax": "server_calculated", "shipping": "server_calculated", "inventory": "live", "currencies": "context_based", "languages": "url_based" }, "data": { "product": { "@context": "https://schema.org", "@type": "Product", "@id": "https:\/\/musiccraft-instruments.com\/en\/p\/concerto-steel-octave-harmonica-72.html#product", "url": "https:\/\/musiccraft-instruments.com\/en\/p\/concerto-steel-octave-harmonica-72.html", "urls": { "agent": "https:\/\/musiccraft-instruments.com\/en\/mcc\/mcc_agent\/product?id_product=72&setCountry=0&setCurrency=1", "contexts": "https:\/\/musiccraft-instruments.com\/en\/mcc\/mcc_agent\/contexts?resource=product&id_product=72&setCountry=0&setCurrency=1", "human": "https:\/\/musiccraft-instruments.com\/en\/p\/concerto-steel-octave-harmonica-72.html" }, "id_product": 72, "name": "CONCERTO STEEL Octave \u2013 Wide. Powerful. Alive.", "description": "Octave harmonica with stainless steel reeds and a huge floating sound. Built for players who want melodies to carry real emotion.", "full_description": "Some instruments don\u2019t fill a room with volume.\u00a0 They fill it with character. The CONCERTO STEEL Octave sounds far bigger than you\u2019d expect from a harmonica. Its signature octave sound comes from two reeds playing simultaneously one octave apart. The result feels wide, warm and almost orchestral. Not thin. Not sharp. But full. Alive. Carrying real weight. That\u2019s exactly why octave harmonicas have been loved for generations wherever music is meant to connect directly with people: folk music, traditional melodies, street sessions, singer-songwriter performances or simple tunes that stay in your head after only a few notes. The CONCERTO STEEL brings that classic sound into a modern world. The stainless steel reeds respond quickly, stay stable for years and deliver more power and durability than many traditional octave harmonicas. At the same time, the instrument remains smooth and controllable. Precision craftsmanship creates excellent airtightness and fast response whether you play softly or push serious air through it. And eventually, something important happens: You stop thinking about technique. And start thinking only about music. The CONCERTO STEEL feels traditional. But never outdated. It respects the classic octave harmonica sound without sounding like a museum piece. For beginners, it opens the door to an incredibly rich sound. For experienced players, it becomes a tool full of dynamics and atmosphere. Sounds better when you make it yourself. The CONCERTO STEEL is handcrafted by C.A. Seydel S\u00f6hne \u2014 the world\u2019s oldest harmonica manufacturer. German craftsmanship for people who don\u2019t just want to play music. But make people feel it.", "additional_text": "Octave harmonica with rich and powerful sound \n Stainless steel reeds for durability and fast response \n Classic floating octave tone \n Perfect for folk, traditional music and melodic playing \n Excellent airtightness and precision craftsmanship \n Warm, wide and resonant tonal character \n Durable stainless steel covers \n Comfortable ergonomic feel \n Handcrafted by C.A. Seydel S\u00f6hne \n Made in Germany", "sku": "865\/31.401", "mpn": "865\/31.401", "ean13": "", "upc": "", "brand": { "@type": "Brand", "name": "C. A. Seydel S\u00f6hne", "url": "https:\/\/musiccraft-instruments.com\/en\/c-a-seydel-sohne_13" }, "manufacturer": { "@type": "Organization", "id_manufacturer": 13, "name": "C. A. Seydel S\u00f6hne", "url": "https:\/\/musiccraft-instruments.com\/en\/c-a-seydel-sohne_13" }, "supplier": { "@type": "Organization", "id_supplier": 1, "name": "Migma e.G." }, "main_category": { "id_category": 15, "name": "Harmonicas", "link_rewrite": "harmonicas", "urls": { "agent": "https:\/\/musiccraft-instruments.com\/en\/mcc\/mcc_agent\/category?id_category=15&setCountry=0&setCurrency=1", "human": "https:\/\/musiccraft-instruments.com\/en\/harmonicas-15" } }, "categories": [ { "id_category": 4, "name": "Instruments", "link_rewrite": "instruments", "urls": { "agent": "https:\/\/musiccraft-instruments.com\/en\/mcc\/mcc_agent\/category?id_category=4&setCountry=0&setCurrency=1", "human": "https:\/\/musiccraft-instruments.com\/en\/instruments-4" } }, { "id_category": 6, "name": "Equipment & Essentials", "link_rewrite": "equipment-essentials", "urls": { "agent": "https:\/\/musiccraft-instruments.com\/en\/mcc\/mcc_agent\/category?id_category=6&setCountry=0&setCurrency=1", "human": "https:\/\/musiccraft-instruments.com\/en\/equipment-essentials-6" } }, { "id_category": 7, "name": "Restoration", "link_rewrite": "restoration", "urls": { "agent": "https:\/\/musiccraft-instruments.com\/en\/mcc\/mcc_agent\/category?id_category=7&setCountry=0&setCurrency=1", "human": "https:\/\/musiccraft-instruments.com\/en\/restoration-7" } }, { "id_category": 5, "name": "Highlight", "link_rewrite": "highlight", "urls": { "agent": "https:\/\/musiccraft-instruments.com\/en\/mcc\/mcc_agent\/category?id_category=5&setCountry=0&setCurrency=1", "human": "https:\/\/musiccraft-instruments.com\/en\/highlight-5" } } ], "features": [ { "id_feature": 1, "id_feature_value": 3, "name": "Product declaration", "value": "Single item" }, { "id_feature": 15, "id_feature_value": 130, "name": "Taxation", "value": "Standard Rate" }, { "id_feature": 9, "id_feature_value": 321, "name": "Instrument", "value": "Harmonica" }, { "id_feature": 2, "id_feature_value": 502, "name": "Badges", "value": "Different variants" } ], "agent_faqs": [ ], "images": [ { "id_image": 2090, "cover": true, "position": 1, "legend": "CONCERTO STEEL Octave \u2013 Wide. Powerful. Alive.", "url": "https:\/\/cdn1.musiccraft-instruments.com\/2090-large_default\/concerto-steel-octave-harmonica.webp" }, { "id_image": 2089, "cover": false, "position": 2, "legend": "CONCERTO STEEL Octave \u2013 Wide. Powerful. Alive.", "url": "https:\/\/cdn3.musiccraft-instruments.com\/2089-large_default\/concerto-steel-octave-harmonica.webp" }, { "id_image": 2091, "cover": false, "position": 3, "legend": "CONCERTO STEEL Octave \u2013 Wide. Powerful. Alive.", "url": "https:\/\/cdn3.musiccraft-instruments.com\/2091-large_default\/concerto-steel-octave-harmonica.webp" }, { "id_image": 2092, "cover": false, "position": 4, "legend": "CONCERTO STEEL Octave \u2013 Wide. Powerful. Alive.", "url": "https:\/\/cdn2.musiccraft-instruments.com\/2092-large_default\/concerto-steel-octave-harmonica.webp" } ], "shipping_weight": { "@type": "QuantitativeValue", "value": 0.12, "unitCode": "KGM", "note": "Shipping weight, not product content." }, "variant_model": { "has_variants": true, "variant_count": 2, "default_id_product_attribute": 86 }, "offers": { "@type": "Offer", "offer_scope": "default_variant", "id_product": 72, "id_product_attribute": 86, "url": "https:\/\/musiccraft-instruments.com\/en\/p\/concerto-steel-octave-harmonica-72.html", "price": 129.90, "priceCurrency": "EUR", "availability": "https://schema.org/InStock", "itemCondition": "https://schema.org/NewCondition", "seller": { "@type": "Organization", "name": "musiccraft - instruments", "url": "https:\/\/musiccraft-instruments.com\/", "telephone": "+49 (0) 34 20 63 14 888" }, "priceSpecification": { "@type": "PriceSpecification", "price": 129.90, "priceCurrency": "EUR", "valueAddedTaxIncluded": true } }, "variant_offers": [ { "@type": "Offer", "id_product": 72, "id_product_attribute": 85, "is_default": false, "sku": "865\/31.401HG", "url": "https:\/\/musiccraft-instruments.com\/en\/p\/concerto-steel-octave-harmonica-72.html", "image": "https:\/\/cdn2.musiccraft-instruments.com\/1-large_default\/concerto-steel-octave-harmonica.webp", "attributes": [ { "group_id": 8, "group_name": "Key", "value": "H\/G" } ], "attribute_summary": "Key: H\/G", "price": { "delivery_country": false, "currency": "EUR", "currency_symbol": "\u20ac", "tax_rate": 19, "tax_excluded": 109.16, "tax_included": 129.90, "without_reduction_tax_excluded": 109.16, "without_reduction_tax_included": 129.90, "value_added_tax_included": true }, "availability": "https://schema.org/InStock", "quantity": 10, "minimal_quantity": 1, "action": { "type": "add_to_cart", "method": "GET", "enabled": true, "quantity": 1, "url": "https:\/\/musiccraft-instruments.com\/en\/shopping-cart?add=1&id_product=72&id_product_attribute=85&qty=1&setCountry=0&setCurrency=1" } }, { "@type": "Offer", "id_product": 72, "id_product_attribute": 86, "is_default": true, "sku": "865\/31.401C", "url": "https:\/\/musiccraft-instruments.com\/en\/p\/concerto-steel-octave-harmonica-72.html", "image": "https:\/\/cdn2.musiccraft-instruments.com\/1-large_default\/concerto-steel-octave-harmonica.webp", "attributes": [ { "group_id": 8, "group_name": "Key", "value": "C" } ], "attribute_summary": "Key: C", "price": { "delivery_country": false, "currency": "EUR", "currency_symbol": "\u20ac", "tax_rate": 19, "tax_excluded": 109.16, "tax_included": 129.90, "without_reduction_tax_excluded": 109.16, "without_reduction_tax_included": 129.90, "value_added_tax_included": true }, "availability": "https://schema.org/InStock", "quantity": 10, "minimal_quantity": 1, "action": { "type": "add_to_cart", "method": "GET", "enabled": true, "quantity": 1, "url": "https:\/\/musiccraft-instruments.com\/en\/shopping-cart?add=1&id_product=72&id_product_attribute=86&qty=1&setCountry=0&setCurrency=1" } } ], "pricing": { "scope": "default_variant", "default_id_product_attribute": 86, "delivery_country": false, "currency": "EUR", "currency_symbol": "\u20ac", "tax_rate": 19, "use_taxes": true, "show_taxes": true, "price_tax_included": 129.90, "price_tax_excluded": 109.16, "price_without_reduction": 109.16, "reduction_percent": 0, "reduction_price": 0 }, "availability": { "status": "https://schema.org/InStock", "orderable": true, "available_for_order": true, "show_price": true, "quantity": 20, "minimal_quantity": 1, "variant_stock_available": true, "allow_buy_when_out_of_stock": false, "stock_management": false, "is_virtual": false } }, "actions": { "add_to_cart": { "type": "cart_add", "method": "GET", "requires_context": true, "required_context_parameters": [ "setCountry", "setCurrency" ], "instruction": "Use the exact action.url from data.product.offers for a simple product or from the selected data.product.variant_offers entry. Respect action.enabled and action.quantity." } } } }