pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-48651-THNLMNZ.ps) >>/Users/jc/w/tmp/Tune-48651-get.log 2>&1" returned status 256
http://sniff.numachi.com/abc/THNLMNZ.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_48651.log 521118 Log file, useful mostly for debugging
Tune-48651-THNLMNZ.abc 244 ABC music file with the extracted tune(s)
Tune-48651-THNLMNZ.ps 34125 PostScript
Tune-48651-THNLMNZ.txt 244 Plain-text file with the extracted tune(s)
Tune-48651-get.log 4243 Log file, useful mostly for debugging
These files should be available for 24 hours.