pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6267-BobbyHarveyStr_F.ps) >>/Users/jc/w/tmp/Tune-6267-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/Scotland/strathspey/BobbyHarveyStr_F.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_62673.log 335403 Log file, useful mostly for debugging
Form_62675.log 778 Log file, useful mostly for debugging
Tune-6267-BobbyHarveyStr_F.abc 633 ABC music file with the extracted tune(s)
Tune-6267-BobbyHarveyStr_F.ps 40101 PostScript
Tune-6267-BobbyHarveyStr_F.txt 633 Plain-text file with the extracted tune(s)
Tune-6267-get.log 4436 Log file, useful mostly for debugging
Tune-62670-get.log 9301 Log file, useful mostly for debugging
Tune-62672-get.log 5050 Log file, useful mostly for debugging
Tune-62674-get.log 3805 Log file, useful mostly for debugging
Tune-62676-get.log 3216 Log file, useful mostly for debugging
These files should be available for 24 hours.