pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2081-w.ps) >>/Users/jc/w/tmp/Tune-2081-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/mirror/terra.es/personal8/niltoni/w.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_20810.log 66344 Log file, useful mostly for debugging
Find_20811.log 1326 Log file, useful mostly for debugging
Form_20813.log 1459 Log file, useful mostly for debugging
Form_20817.log 743 Log file, useful mostly for debugging
Form_20819.log 745 Log file, useful mostly for debugging
Tune-2081-get.log 9700 Log file, useful mostly for debugging
Tune-2081-w.abc 207 ABC music file with the extracted tune(s)
Tune-2081-w.ps 35277 PostScript
Tune-2081-w.txt 207 Plain-text file with the extracted tune(s)
Tune-20810-get.log 3674 Log file, useful mostly for debugging
Tune-20816-get.log 5038 Log file, useful mostly for debugging
Tune-20817-get.log 3028 Log file, useful mostly for debugging
Tune-20819-get.log 5841 Log file, useful mostly for debugging
These files should be available for 24 hours.