This document summarizes a lecture on e-learning environments in music education given by Gerhard Lock at the University of Arts in Belgrade. The lecture explored requirements for establishing e-learning environments such as basic computer, internet, and software skills. It categorized e-learning environments as open, partly open/closed, or closed and discussed how the internet is changing these environments. The lecture also examined what makes e-learning environments effective and how music technology and social networks are impacting current and future e-learning.