pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-83922-BarbarasStr_G.ps) >>/Users/jc/w/tmp/Tune-83922-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/Scotland/strathspey/BarbarasStr_G.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_83922.log 268169 Log file, useful mostly for debugging
Find_83922.log 1717 Log file, useful mostly for debugging
Form_83922.log 753 Log file, useful mostly for debugging
Tune-83922-BarbarasStr_G.abc 582 ABC music file with the extracted tune(s)
Tune-83922-BarbarasStr_G.ps 38401 PostScript
Tune-83922-BarbarasStr_G.txt 582 Plain-text file with the extracted tune(s)
Tune-83922-get.log 4444 Log file, useful mostly for debugging
These files should be available for 24 hours.