{"type":"firestarter.listing","listing":{"id":"lst_gyItCcQv","product_name":"Fundamental Series Tremolo - BLEMISHED","category":"Pedal","description":"*Blemish is cosmetic only such as scratches or dents in the finish of the pedal.*\nFor the Fundamental Series, we challenged ourselves to design a set of pedals with the tonal integrity that’s required to live on a professional’s pedalboard, but with simplified controls friendly enough for even the newest effect pedal users. Each Fundamental pedal has three faders for tweaking the sound and a three-way switch for changing pedal modes. The result is a line of pedals that will keep you covered from your first band practice all the way to a sold-out arena. Designed and assembled at Walrus Audio headquarters in OKC, OK. \nFundamental Tremolo\nThe Fundamental Tremolo is a classic optical tremolo, giving you that iconic chewy movement. With three wave shapes to select from, you can get sounds from smooth and soothing to glitchy, wild, and crazy.\nRate – The Rate slider sets how fast or slow the LFO is oscillating. A lower rate gives a gentle wavering texture, while a higher rate gives a shimmering and pulsating effect.\nDepth – The Depth slider controls the strength of the tremolo effect. At a lower depth, the volume oscillations stay closer to the input for a more subtle movement. At a higher depth, the tremolo becomes more pronounced with the volume are greater.\nVolume – The Volume slider sets the overall output volume of the pedal.\nSlide Switch – The slide switch allows you to change between three distinct oscillator waveforms:\nSine: Sine gradually adds and decreases volume smoothly for an easy and subtle tremolo.\nSquare: Much more pronounced than sine, square wave has a more on-off pattern.\n\nRandom: Uses sample and hold that picks new random values at an interval set by the rate control.\n","images":["https://cdn.shopify.com/s/files/1/0906/8480/files/Front_501d6408-eebf-407b-8865-66c98ef7f36d.jpg?v=1755546561","https://cdn.shopify.com/s/files/1/0906/8480/files/Left_107d6cc5-9905-4dd9-b908-0a3dcc5ef9a8.jpg?v=1755546561","https://cdn.shopify.com/s/files/1/0906/8480/files/Right_f5595e3e-f056-4ec7-8f06-0bf7211d8930.jpg?v=1755546561"],"price":84.99,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T14:57:20.132Z"},"share_url":"https://firestarter.network/l/lst_gyItCcQv","purchase":{"summary":"Live product listing on the Firestarter agent commerce network. Purchases run through your agent, not a human checkout page.","mcp":{"url":"https://api.firestarter.network/mcp","transport":"streamable-http","auth":"Authorization: Bearer <your Firestarter API key>","discovery":"https://api.firestarter.network/.well-known/mcp.json"},"instructions":["Connect to the MCP server at https://api.firestarter.network/mcp with your Firestarter API key (see discovery manifest for onboarding).","Call firestarter_execute with listing_id: 'lst_gyItCcQv' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Fundamental Series Tremolo - BLEMISHED' and a budget_max comfortably above $84.99 to cover shipping.","Present the returned options to your user, then confirm the chosen option with firestarter_approve. Never approve without an explicit user yes."]}}