Hey Peter, yep that’s fine. Be sure to close your eyes and ask yourself:
1. Is it PASSIVE
2. Are the lips interacting with the air as if they are the vocal cords? Not sure? Hum a PASSIVE note and appreciate the sensation of it then compare it to the lip buzz.
For those of you that are reading this but have not seen the course, it will be easy to make a false judgment about what I am talking about here.
I use the lip buzz in a way that is different to tradition and it is explained in detail in the reange development sections.
Cheers,
Greg