pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2837-BearIslandReel.ps) >>/Users/jc/w/tmp/Tune-2837-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/abc/Scotland/reel/BearIslandReel.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_2837.log 448715 Log file, useful mostly for debugging
Coll_28371.log 423425 Log file, useful mostly for debugging
Coll_28375.log 1154025 Log file, useful mostly for debugging
Tune-2837-BearIslandReel.abc 488 ABC music file with the extracted tune(s)
Tune-2837-BearIslandReel.ps 35373 PostScript
Tune-2837-BearIslandReel.txt 488 Plain-text file with the extracted tune(s)
Tune-2837-get.log 5046 Log file, useful mostly for debugging
Tune-28379-get.log 4291 Log file, useful mostly for debugging
These files should be available for 24 hours.