[Harp-L] Bb or Eb Chromatics

[Jim Hanks <jhanks@xxxxxxxxxxxxx>]

This has probably been covered before, but please educate me again. How 
are the Bb or Eb Chromatics tuned relative to a "standard" C chromatic? 
I'm thinking the Bb would be just a whole tone below, but is the Eb 
lower or higher? If lower, I'm thinking the Eb might be useful for 
playing alto saxophone lines "as written". True? And that would make the 
Bb the equivalent of a soprano sax, right?

Thanks,
Jim