\triangle in markup

[Jonathan Townes]

Greetings,
I have been using \triangle within markup, e.g. c4^\markup  
{ \triangle } .
Until upgrading to Lilypond 2.6.5 from 2.6.3 I had no problems. I am,  
however, able to use \flat and \sharp in Lilypond 2.6.5.
As an experiment, I reinstalled 2.6.3 and am still receiving the  
following error:

Processing `Untitled.ly'
Parsing...
Untitled.ly:5:31: error: syntax error, unexpected '}', expecting  
SCM_T or SCM_IDENTIFIER
        c4^\markup { \triangle
                               } d e f
error: errors found, ignoring music expression
error: failed files: "Untitled.ly"


I am also attaching an excerpt of my previous \triangle success.

Lilypond 2.6.5
Lilypad 2-1
Mac OS 10.4.3

Thanks,
Jonathan Townes