pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3627-121_MissMaxwellsReel.ps) >>/Users/jc/w/tmp/Tune-3627-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/AbrahamMackintosh/121_MissMaxwellsReel.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_36275.log 152496 Log file, useful mostly for debugging
Form_36271.log 959 Log file, useful mostly for debugging
Form_36279.log 949 Log file, useful mostly for debugging
Tune-3627-121_MissMaxwellsReel.abc 893 ABC music file with the extracted tune(s)
Tune-3627-121_MissMaxwellsReel.ps 38863 PostScript
Tune-3627-121_MissMaxwellsReel.txt 893 Plain-text file with the extracted tune(s)
Tune-3627-get.log 4712 Log file, useful mostly for debugging
Tune-36271-get.log 1386 Log file, useful mostly for debugging
Tune-36275-get.log 1386 Log file, useful mostly for debugging
Tune-36279-get.log 1386 Log file, useful mostly for debugging
These files should be available for 24 hours.