pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7493-Gows_Quickstep-D-32-3.ps) >>/Users/jc/w/tmp/Tune-7493-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/abc/Scotland/reel/Gows_Quickstep-D-32-3.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.65 512x512 PNG]
filesizedescription
Coll_74930.log 527395 Log file, useful mostly for debugging
Coll_74935.log 992450 Log file, useful mostly for debugging
Coll_74936.log 1141899 Log file, useful mostly for debugging
Coll_74937.log 145386 Log file, useful mostly for debugging
Tune-7493-Gows_Quickstep-D-32-3.abc 738 ABC music file with the extracted tune(s)
Tune-7493-Gows_Quickstep-D-32-3.ps 36515 PostScript
Tune-7493-Gows_Quickstep-D-32-3.txt 738 Plain-text file with the extracted tune(s)
Tune-7493-get.log 5263 Log file, useful mostly for debugging
These files should be available for 24 hours.