Mismatch: X:790 doesn't match requested X:791
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-76100-hnr7.ps) >>/Users/jc/w/tmp/Tune-76100-get.log 2>&1" returned status 256
http://norbeck.nu/abc/i/hnr7.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-76100-get.log 31866 Log file, useful mostly for debugging
Tune-76100-hnr7.abc 364 ABC music file with the extracted tune(s)
Tune-76100-hnr7.ps 33905 PostScript
Tune-76100-hnr7.txt 364 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.