Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/Stewart/Riddell/tmp/Tune-2725-0331_.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9660-Tune-2725-0331_.ps) >>/Users/jc/w/tmp/Tune-9660-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Stewart/Riddell/tmp/Tune-2725-0331_.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.65 512x512 PNG]
filesizedescription
Find_96601.log 1652 Log file, useful mostly for debugging
Tune-9660-Tune-2725-0331_.abc 167 ABC music file with the extracted tune(s)
Tune-9660-Tune-2725-0331_.ps 6 PostScript
Tune-9660-Tune-2725-0331_.txt 167 Plain-text file with the extracted tune(s)
Tune-9660-get.log 4257 Log file, useful mostly for debugging
Tune-96605-get.log 1346 Log file, useful mostly for debugging
These files should be available for 24 hours.