pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8354-1779_Thompson.ps) >>/Users/jc/w/tmp/Tune-8354-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/DftY/1779_Thompson.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Tune-8354-1779_Thompson.abc 21921 ABC music file with the extracted tune(s)
Tune-8354-1779_Thompson.ps 125585 PostScript
Tune-8354-1779_Thompson.txt 21921 Plain-text file with the extracted tune(s)
Tune-8354-get.log 17028 Log file, useful mostly for debugging
Tune-83542-all.abc 171 ABC music file with the extracted tune(s)
Tune-83542-all.ps 6 PostScript
Tune-83542-all.txt 171 Plain-text file with the extracted tune(s)
Tune-83542-get.log 3988 Log file, useful mostly for debugging
Tune-83549-Buningford_Assembly.abc 759 ABC music file with the extracted tune(s)
Tune-83549-Buningford_Assembly.pdf 18287 Portable Data Format
Tune-83549-Buningford_Assembly.ps 35779 PostScript
Tune-83549-Buningford_Assembly.txt 759 Plain-text file with the extracted tune(s)
Tune-83549-get.log 5607 Log file, useful mostly for debugging
These files should be available for 24 hours.