pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-18312-06_BrightonPuzzleThe.ps) >>/Users/jc/w/tmp/Tune-18312-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/DftY/1808/Goulding/06_BrightonPuzzleThe.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Coll_18312.log 281521 Log file, useful mostly for debugging
Tune-18312-06_BrightonPuzzleThe.abc 957 ABC music file with the extracted tune(s)
Tune-18312-06_BrightonPuzzleThe.ps 35141 PostScript
Tune-18312-06_BrightonPuzzleThe.txt 957 Plain-text file with the extracted tune(s)
Tune-18312-get.log 4733 Log file, useful mostly for debugging
These files should be available for 24 hours.