pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-66797-hnhanterdro0.ps) >>/Users/jc/w/tmp/Tune-66797-get.log 2>&1" returned status 256
http://www.norbeck.nu/abc/m/hnhanterdro0.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-66797-get.log 4196 Log file, useful mostly for debugging
Tune-66797-hnhanterdro0.abc 1146 ABC music file with the extracted tune(s)
Tune-66797-hnhanterdro0.ps 34553 PostScript
Tune-66797-hnhanterdro0.txt 1146 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.