Songrium Extension is a Chrome add-on developed by Media Interaction Group. It is a free tool that allows users to listen to music video clips and their derivative works in Nico Nico Douga and YouTube.

With Songrium Extension, users can access VOCALOID original songs and their derivative videos in Nico Nico Douga. The extension provides features such as playing the chorus of the songs, displaying connections between VOCALOID original songs (arrow tags), showing derivative videos of the songs, and displaying the original songs of the derivative videos.

In YouTube, users can access original music videos and their derivative videos, such as covers and remixes. Songrium Extension offers features like playing the chorus of the original songs, displaying connections between the videos (arrow tags), showing derivative videos of the songs, and displaying the original songs of the derivative videos.

This browser extension was created to make it easier for users to enjoy Songrium, a research and development project by the National Institute of Advanced Industrial Science and Technology (AIST). The project aims to enhance the way people listen to music and explore new ways to enjoy the increasing amount of music content.

Please note that Songrium Extension collects usage data through Google Analytics for academic research and functionality improvement purposes, but it does not collect any personally identifiable information.