pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8357-CaseysPig.ps) >>/Users/jc/w/tmp/Tune-8357-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/abc/Scotland/reel/CaseysPig.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_8357.log 1240254 Log file, useful mostly for debugging
Coll_83573.log 1116614 Log file, useful mostly for debugging
Coll_83574.log 781700 Log file, useful mostly for debugging
Coll_83578.log 34704 Log file, useful mostly for debugging
Tune-8357-CaseysPig.abc 392 ABC music file with the extracted tune(s)
Tune-8357-CaseysPig.ps 33423 PostScript
Tune-8357-CaseysPig.txt 392 Plain-text file with the extracted tune(s)
Tune-8357-get.log 4971 Log file, useful mostly for debugging
Tune-83570-GlakeyHornpipe_G.abc 425 ABC music file with the extracted tune(s)
Tune-83570-GlakeyHornpipe_G.pdf 15596 Portable Data Format
Tune-83570-GlakeyHornpipe_G.ps 35127 PostScript
Tune-83570-GlakeyHornpipe_G.txt 425 Plain-text file with the extracted tune(s)
Tune-83570-get.log 5535 Log file, useful mostly for debugging
Tune-83573-get.log 5412 Log file, useful mostly for debugging
Tune-83578-HuntsmansHp2_C-001.svg 18698 Scalable Vector Graphics format
Tune-83578-HuntsmansHp2_C.abc 559 ABC music file with the extracted tune(s)
Tune-83578-HuntsmansHp2_C.txt 559 Plain-text file with the extracted tune(s)
Tune-83578-get.log 4677 Log file, useful mostly for debugging
These files should be available for 24 hours.