pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8263-dim.ps) >>/Users/jc/w/tmp/Tune-8263-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/WilliamCampbell/10thBook/dim.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Coll_82631.log 415871 Log file, useful mostly for debugging
Coll_82633.log 292760 Log file, useful mostly for debugging
Coll_82635.log 292761 Log file, useful mostly for debugging
Coll_82636.log 1333760 Log file, useful mostly for debugging
Tune-8263-CDSS_Gems.abc 146 ABC music file with the extracted tune(s)
Tune-8263-CDSS_Gems.pdf 2217 Portable Data Format
Tune-8263-CDSS_Gems.ps 6 PostScript
Tune-8263-CDSS_Gems.txt 146 Plain-text file with the extracted tune(s)
Tune-8263-dim.abc 221 ABC music file with the extracted tune(s)
Tune-8263-dim.ps 6 PostScript
Tune-8263-dim.txt 221 Plain-text file with the extracted tune(s)
Tune-8263-get.log 8669 Log file, useful mostly for debugging
Tune-82630-Jean_Henry_dAnglebert_PdC2.abc 164 ABC music file with the extracted tune(s)
Tune-82630-Jean_Henry_dAnglebert_PdC2.txt 164 Plain-text file with the extracted tune(s)
Tune-82630-get.log 3478 Log file, useful mostly for debugging
Tune-82631-24CountryDances_1796_Preston.abc 167 ABC music file with the extracted tune(s)
Tune-82631-24CountryDances_1796_Preston.txt 167 Plain-text file with the extracted tune(s)
Tune-82631-get.log 9810 Log file, useful mostly for debugging
Tune-82632-get.log 5654 Log file, useful mostly for debugging
Tune-82634-get.log 3258 Log file, useful mostly for debugging
These files should be available for 24 hours.