Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/Stewart/Riddell/tmp/Tune-2684-0301_.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9604-Tune-2684-0301_.ps) >>/Users/jc/w/tmp/Tune-9604-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Stewart/Riddell/tmp/Tune-2684-0301_.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.65 512x512 PNG]
filesizedescription
Coll_96044.log 150573 Log file, useful mostly for debugging
Coll_96047.log 138412 Log file, useful mostly for debugging
Tune-9604-Tune-2684-0301_.abc 167 ABC music file with the extracted tune(s)
Tune-9604-Tune-2684-0301_.ps 6 PostScript
Tune-9604-Tune-2684-0301_.txt 167 Plain-text file with the extracted tune(s)
Tune-9604-get.log 4257 Log file, useful mostly for debugging
Tune-96040-Straight_Skillern.abc 166 ABC music file with the extracted tune(s)
Tune-96040-Straight_Skillern.ps 6 PostScript
Tune-96040-Straight_Skillern.txt 166 Plain-text file with the extracted tune(s)
Tune-96040-get.log 4331 Log file, useful mostly for debugging
These files should be available for 24 hours.