Google Sign-In - Google Sign-In is a secure authentication system that enables users to sign in with their Google accounts.
Sibelius - Sibelius is a virtual score creation tool which allows composers to easily create new piano scores, developed by Avid.
uLogin - uLogin is a convenient service to login via social networks.
MuseScore.org - Create, play back and print beautiful sheet music with free and easy to use music notation software MuseScore. For Windows, Mac and Linux.
Facebook Login - Facebook Login is a secure, fast and convenient way for people to log into your app or website.
Finale - Finale, the world standard for music notation software, lets you compose, arrange, notate, and print engraver-quality sheet music.