pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-5144-14SD2000.ps) >>/Users/jc/w/tmp/Tune-5144-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/SCD/RoyGoldring/14SD2000.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
Coll_51441.log 146437 Log file, useful mostly for debugging
Tune-5144-14SD2000.abc 712 ABC music file with the extracted tune(s)
Tune-5144-14SD2000.ps 39731 PostScript
Tune-5144-14SD2000.txt 712 Plain-text file with the extracted tune(s)
Tune-5144-get.log 4265 Log file, useful mostly for debugging
Tune-51445-get.log 2398 Log file, useful mostly for debugging
Tune-51447-cunning.abc 380 ABC music file with the extracted tune(s)
Tune-51447-cunning.malt 3389 Musical Instrument Digital Interface, alternate name for midi format
Tune-51447-cunning.mid 3389 Musical Instrument Digital interface, shortened name for midi format
Tune-51447-cunning.midi 3389 Musical Instrument Digital Interface, electronic version of the tune(s)
Tune-51447-cunning.txt 380 Plain-text file with the extracted tune(s)
Tune-51447-get.log 5311 Log file, useful mostly for debugging
These files should be available for 24 hours.