pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-41687-hnbarn0.ps) >>/Users/jc/w/tmp/Tune-41687-get.log 2>&1" returned status 256
http://norbeck.nu/abc/i/hnbarn0.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-41687-get.log 4015 Log file, useful mostly for debugging
Tune-41687-hnbarn0.abc 612 ABC music file with the extracted tune(s)
Tune-41687-hnbarn0.ps 39518 PostScript
Tune-41687-hnbarn0.txt 612 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.