AccompanimentBETA is a Chrome extension designed for singers who wish to sing along with music accompaniment while watching videos on YouTube and BiliBili. This tool replaces the original music in a streamed video with its accompaniment, providing users with the ability to enjoy their favorite content while practicing their singing skills. It offers seamless streaming of the accompaniment music alongside the video, enhancing the user experience for aspiring singers.

To utilize AccompanimentBETA, users need a macOS system and a Python 3.9 interpreter with specific libraries installed. This free Chrome extension caters to individuals looking to enhance their singing performances by providing a convenient way to practice with accompaniment on popular video platforms.