Error message

[Vivian Barty-Taylor]

I'm using 2.6.1 

I'm getting an odd error message. The file appears to
parse and process correctly. Then after Lilypond has
computed the line and page breaks I get the messages

ERROR: In procedure ly_scm2double:
ERROR: Wrong type argument: (-8)

The file then appears not to have written to the PDF
(I get the previous version I saved without the new
changes.)

Does anyone know what this is?

Many thanks,
Vivian. 

My new website - www.vivbt.tk


        
        
                
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