I'm trying to figure it out using the instructions, but nothing seems to work.

I get that I can bind notes to keys which I assume range from 0 to 2.9 in value, but /ms just keeps turning it on and off.

How do I bind the note to a key?

Also, is there any understanding of what the notes are? for instance, what is 2.9? A C D? What is 0? Which are whole notes? 

Any information is appreciated.