Please register via facebook.com
Registration is through facebook.com service - it provides access
to your page in the social network, avatar, name, surname.
I do not send data to the parties and do not send out spam.
Conditions for using these exercises:
Online music games and trainings
- Exercises can be used on an individual basis and should not be used for
- Issues of commercial use of programs are discussed - firstname.lastname@example.org
- Information about the lessons learned will be stored for six months and