how to add a melody

[neuro Hwang]

I really appreciate the answers from Graham Percival. Thank you very much :)


One more question,

How to  sudenly, (not of a regular voice), add a melody on a regular melody?
For example, a measure goes like in

---
global =  \notes {
  \key ef \major
  \time 6/8
}

upper =  \context Staff \notes\relative c {
d4. d4 e8

% at this very measure, I'd like to add a
b2.                              % a 2 beats of b
}

lower =  \context Staff \notes\relative c {
}

\score {
 \context GrandStaff <
 \context Staff = upper <
  \global
  \upper
  >
 \context Staff = lower <
  \global
  \clef "bass"
  \lower
  >
 >
}
---

thank you very much


neuro
http://neuro.ohbi.net
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