Can't get \RemoveEmptyStaffContext and \RemoveEmptyRhythmicStaffContext to work together

[Brett McCoy]

I have an orchestral score and I am trying to suppress empty staves
from printing in systems, using \RemoveEmptyStaffContext and
\RemoveEmptyRhythmicStaffContext. Going by a previous thread I found,
I have tried this:


\layout {
    \context {
      \RemoveEmptyStaffContext
    }
  }

 \layout {
\context {
  %    \RemoveEmptyRhythmicStaffContext
  % }
%}

-- 
Brett W. McCoy -- http://www.electricminstrel.com
------------------------------------------------------------------------
"In the rhythm of music a secret is hidden; If I were to divulge it,
it would overturn the world."
    -- Jelaleddin Rumi