How to understand all functions in Openmusic?

I read again and again and Idon´t understand all indications in this tag. Well... I subscribed to the Steemit Local music community at Discord for participation in the composers and musicians... Then, I´m redirected to steemit by the community team in Discord @luzcypher... hahahahaha... This site is for crazy!!! :P... Well, slowly... but meanwhile...