pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-80244-Book_Stabbe.ps) >>/Users/jc/w/tmp/Tune-80244-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/scand/Book_Stabbe.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Coll_80244.log 292760 Log file, useful mostly for debugging
Tune-80244-Book_Stabbe.abc 1108 ABC music file with the extracted tune(s)
Tune-80244-Book_Stabbe.ps 41582 PostScript
Tune-80244-Book_Stabbe.txt 1108 Plain-text file with the extracted tune(s)
Tune-80244-get.log 4398 Log file, useful mostly for debugging
These files should be available for 24 hours.