pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-20559-3222_the_Bottle_of_Punch.ps) >>/Users/jc/w/tmp/Tune-20559-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Gow/CSR/3222_the_Bottle_of_Punch.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_20559.log 292760 Log file, useful mostly for debugging
Tune-20559-3222_the_Bottle_of_Punch.abc 1043 ABC music file with the extracted tune(s)
Tune-20559-3222_the_Bottle_of_Punch.ps 40890 PostScript
Tune-20559-3222_the_Bottle_of_Punch.txt 1043 Plain-text file with the extracted tune(s)
Tune-20559-get.log 4741 Log file, useful mostly for debugging
These files should be available for 24 hours.