Practicing a musical instrument can be challenging not only motorically but mentally as well. One way to help with motivational problems is to keep records of practicing, which helps in tracking the progress. In this thesis we design and implement a prototype for a web application that allows people to save and browse their musical practicing and other interesting online material. The application also enables sharing and commenting these practice logs with other users of the system and the visualization of the practice data. In addition, the application has features designed to facilitate communication as well as material and recording sharing between focused groups of users. We chose to implement the prototype as a Single-Page Web Applicat...