producing no3 chords in \chords

[Alexander Toresson]

I've been trying to produce no3 chords in \chords, like this:

{
        \chords {
        d:no3
        }
}

But, lilypond complains like this:

vals.ly:3:10: error: syntax error, unexpected STRING
        d:
          no3
vals.ly:1:0: error: errors found, ignoring music expression

I've googled a bit but can't find any solution to this. What I'd like
to do is 'compose' a new chord type. Is that possible?

Btw, I'm running lilypond 2.6.3.

Regards, Alexander Toresson