thanks for the kind words, y’all!
re: manual, it’s pretty firmed up – there won’t be any super big changes for a little while, but there will be refinements. if folks are committing physical resources, i’m going to start including a summary sheet of changes with each new manual version – that way, you can just have a quick overview of the differences between the one you printed and the next one(s). no reason to re-print all that just for a few sentences.
i’m also going to be releasing some videos to supplement the manual, so you can always catch up on changes there too 
all on the global LEVELS page (if you exit cheat codes and spin E1 to the left, it’s the first page) – you’ll want to turn mon down.
you can also use SYSTEM > AUDIO > monitor.