pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3225-3063.ps) >>/Users/jc/w/tmp/Tune-3225-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Gow/CR/3063=Sleepy_Bodie.abc2.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_3225.log 1302955 Log file, useful mostly for debugging
Coll_32250.log 1131545 Log file, useful mostly for debugging
Coll_32255.log 2776437 Log file, useful mostly for debugging
Form_32259.log 886 Log file, useful mostly for debugging
Tune-3225-3063.abc 1055 ABC music file with the extracted tune(s)
Tune-3225-3063.ps 40485 PostScript
Tune-3225-3063.txt 1055 Plain-text file with the extracted tune(s)
Tune-3225-get.log 4665 Log file, useful mostly for debugging
Tune-32252-get.log 3668 Log file, useful mostly for debugging
Tune-32254-get.log 3794 Log file, useful mostly for debugging
Tune-32256-get.log 5443 Log file, useful mostly for debugging
These files should be available for 24 hours.