pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-85796-3283_the_Glasgow_Lasses.ps) >>/Users/jc/w/tmp/Tune-85796-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Gow/CR/3283_the_Glasgow_Lasses.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_85796.log 454338 Log file, useful mostly for debugging
Tune-85796-3283_the_Glasgow_Lasses.abc 890 ABC music file with the extracted tune(s)
Tune-85796-3283_the_Glasgow_Lasses.ps 40893 PostScript
Tune-85796-3283_the_Glasgow_Lasses.txt 890 Plain-text file with the extracted tune(s)
Tune-85796-get.log 6137 Log file, useful mostly for debugging
These files should be available for 24 hours.