pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-25019-hnr8.ps) >>/Users/jc/w/tmp/Tune-25019-get.log 2>&1" returned status 256
http://norbeck.nu/abc/i/hnr8.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-25019-get.log 4069 Log file, useful mostly for debugging
Tune-25019-hnr8.abc 284 ABC music file with the extracted tune(s)
Tune-25019-hnr8.ps 35863 PostScript
Tune-25019-hnr8.txt 284 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.