pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6864-JackDanielsR_A4.ps) >>/Users/jc/w/tmp/Tune-6864-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/abc/Scotland/reel/JackDanielsR_A4.abc

Error exit status 256; here are some files to check:
[P=get.cgi V=1/1 B=0 scale=0.65 512x512 PNG]
filesizedescription
Coll_68645.log 150067 Log file, useful mostly for debugging
Coll_68649.log 126472 Log file, useful mostly for debugging
Tune-6864-JackDanielsR_A4.abc 476 ABC music file with the extracted tune(s)
Tune-6864-JackDanielsR_A4.ps 36122 PostScript
Tune-6864-JackDanielsR_A4.txt 476 Plain-text file with the extracted tune(s)
Tune-6864-get.log 4508 Log file, useful mostly for debugging
Tune-68640-get.log 2765 Log file, useful mostly for debugging
Tune-68643-get.log 4127 Log file, useful mostly for debugging
Tune-68645-get.log 3130 Log file, useful mostly for debugging
Tune-68647-get.log 3715 Log file, useful mostly for debugging
Tune-68649-Baty.abc 685 ABC music file with the extracted tune(s)
Tune-68649-Baty.ps 39833 PostScript
Tune-68649-Baty.txt 685 Plain-text file with the extracted tune(s)
Tune-68649-get.log 25316 Log file, useful mostly for debugging
These files should be available for 24 hours.