pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1724-hnr5.ps) >>/Users/jc/w/tmp/Tune-1724-get.log 2>&1" returned status 256
http://www.norbeck.nu/abc/i/hnr5.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_17243.log 256329 Log file, useful mostly for debugging
Form_17244.log 844 Log file, useful mostly for debugging
Tune-1724-get.log 4044 Log file, useful mostly for debugging
Tune-1724-hnr5.abc 366 ABC music file with the extracted tune(s)
Tune-1724-hnr5.ps 37844 PostScript
Tune-1724-hnr5.txt 366 Plain-text file with the extracted tune(s)
Tune-17244-get.log 4117 Log file, useful mostly for debugging
Tune-17247-get.log 3002 Log file, useful mostly for debugging
Tune-17248-get.log 1502 Log file, useful mostly for debugging
These files should be available for 24 hours.