Small Qubble About Scientific Pitch Notation

I know Ethan is very scientific.  It so happens that I'm picky when it comes to assigning octave numbers.  Scientific Pitch Notation places C4 as middle C ~262Hz.  That being said, the image on p.28 has 1000Hz labeled as 'B6' despite that referencing middle C as 'C5'. 

C4=middle C:

B4 ~ 494Hz

B5 ~ 988Hz

B6 ~ 1976Hz

So, besides being the wrong octave, it also doesn't mention that the note played is actually sharp.  There is no 1000Hz when A=440Hz - no matter what octave you call it. 

But Ethan probably didn't write that software.  Just thought I'd mention it!

Thanks