Symphony is a decentralized finance (DeFi) protocol designed to facilitate yield generation through a system of on-chain limit orders. Operating as a dApp on various blockchain networks, it provides an alternative to the standard Automated Market Maker (AMM) model. Instead of swapping assets at the current market price, users can set specific price targets to buy or sell cryptocurrencies. When the market reaches a user's target price, the trade is automatically executed by the smart contract. The core function of Symphony is to allow users to earn yield from these completed limit orders. This mechanism differs from traditional yield farming, which typically involves providing liquidity to a pool. The protocol's architecture is structured to give users more control over their trading execution, aiming to mitigate risks such as price slippage. Furthermore, its design incorporates elements intended to reduce the impact of MEV (Miner Extractable Value), a prevalent issue in the blockchain space where transaction ordering can be manipulated for profit. As a non-custodial protocol, Symphony ensures that users maintain full control over their digital assets throughout the process. The platform was built to be multi-chain, with deployments on blockchains like Polygon, offering users access to potentially lower gas fees and enhanced transaction speeds. By integrating the functionality of an order book with DeFi's composable nature, Symphony caters to traders and yield seekers looking for more precise and strategic tools for managing their on-chain capital. It represents a specific approach within the broader Web3 ecosystem to enhance capital efficiency and user control in decentralized trading environments.