X:126 not found in http://www.orpheusweb.co.uk/gatherer/scottish/abc4/mrsnor.abc
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-27439-mrsnor.ps) >>/Users/jc/w/tmp/Tune-27439-get.log 2>&1" returned status 256
http://www.orpheusweb.co.uk/gatherer/scottish/abc4/mrsnor.abc

Error exit status 256; here are some files to check:
[P=get.cgi V=1/1 B=0 scale=0.60 512x512 PNG]
filesizedescription
Tune-27439-get.log 4413 Log file, useful mostly for debugging
Tune-27439-mrsnor.abc 0 ABC music file with the extracted tune(s)
Tune-27439-mrsnor.ps 6 PostScript
Tune-27439-mrsnor.txt 0 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.