trouble with easyHeads

[Jay Hamilton, Sound and Silence]

Hello-
I thought I'd set a few piano exercises for my beginning students in 
\setEasyHeads.
However when I put the line after the header just before the 'notes' I 
got and error message that it was an unknown 'Identifier' and wouldn't 
compile and when I put it in the score/ the piece compiled but without 
the letters in the noteheads.

2.6.4
winxp

So where does this belong?  or should I submit both examples?
Jay

--
Childhood is a Journey not a race- Emma Sadinsky aged 8
Jay Hamilton
Sound and Silence
206-328-7694
www.soundand.com