pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-30816-4180_the_Fox_Chased.ps) >>/Users/jc/w/tmp/Tune-30816-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Kerr/MM4/4180_the_Fox_Chased.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-30816-4180_the_Fox_Chased.abc 420 ABC music file with the extracted tune(s)
Tune-30816-4180_the_Fox_Chased.ps 36356 PostScript
Tune-30816-4180_the_Fox_Chased.txt 420 Plain-text file with the extracted tune(s)
Tune-30816-get.log 7630 Log file, useful mostly for debugging
These files should be available for 24 hours.