# guitar.solutions — The Signal Chain, by Jason Colapietro > guitar.solutions is the home of The Signal Chain, Jason Colapietro's (Johnny > Suede) illustrated history of electric guitar tone, and the engineering-grade > signal chain guides that grew out of it. Both are now built on Strumly, the > AI guitar coach. ## Book - [The Signal Chain](https://strumly.suedeai.ai/book): Jason Colapietro's illustrated history of electric guitar tone — amps, effects, a self-taught memoir, and 111 song lessons. - [Four free lessons](https://strumly.suedeai.ai/book/lessons): Purple Haze, Comfortably Numb, Pride and Joy, Smells Like Teen Spirit. - [Print the Quiet](https://strumly.suedeai.ai/book/print-the-quiet): nine essays on tone and dynamics. - [Catalog](https://strumly.suedeai.ai/book/catalog): the full catalog of Jason Colapietro's books, apps, and Suede Labs AI. ## Guides - [Signal Chain Guides](https://strumly.suedeai.ai/guides): engineering-grade reference guides — impedance, gain staging, cable capacitance, effects-loop routing — plus practice methodology and rights & IP for working musicians. Formerly guides.guitar.solutions. - **Suede IP Registry:** registration is live at https://ip.suedeai.ai on Base and Avalanche mainnet. The registry records provenance and issues no licenses. Strumly itself exposes no registration, licensing, or rights-settlement tool; its rights articles are educational context only. ## Also here - [Strumly](https://strumly.suedeai.ai/): the AI guitar coach built from the book and guides above — tuner, metronome, chord/scale libraries, and a persistent AI coach. - [Full agent-commerce manifest](https://strumly.suedeai.ai/llms.txt): Strumly's paid Coach API, payment rails (x402/USDC on Base, Stripe), and discovery endpoints for agents that want to query verified musical truth programmatically. - [Contact](mailto:jasoncola1@gmail.com): direct line.