pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-32569-025_Lewie_Gordon.ps) >>/Users/jc/w/tmp/Tune-32569-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Chappell/025_Lewie_Gordon.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_32569.log 465411 Log file, useful mostly for debugging
Tune-32569-025_Lewie_Gordon.abc 482 ABC music file with the extracted tune(s)
Tune-32569-025_Lewie_Gordon.ps 34726 PostScript
Tune-32569-025_Lewie_Gordon.txt 482 Plain-text file with the extracted tune(s)
Tune-32569-get.log 4789 Log file, useful mostly for debugging
These files should be available for 24 hours.