Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/Stewart/Riddell/tmp/Tune-7738-0311_.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9559-Tune-7738-0311_.ps) >>/Users/jc/w/tmp/Tune-9559-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Stewart/Riddell/tmp/Tune-7738-0311_.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_95596.log 1535 Log file, useful mostly for debugging
Tune-9559-Tune-7738-0311_.abc 167 ABC music file with the extracted tune(s)
Tune-9559-Tune-7738-0311_.ps 6 PostScript
Tune-9559-Tune-7738-0311_.txt 167 Plain-text file with the extracted tune(s)
Tune-9559-get.log 4257 Log file, useful mostly for debugging
Tune-95592-get.log 1448 Log file, useful mostly for debugging
Tune-95599-get.log 1536 Log file, useful mostly for debugging
These files should be available for 24 hours.