Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/1812/MrKynastonsFamousDance.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4314-MrKynastonsFamousDance.ps) >>/Users/jc/w/tmp/Tune-4314-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/1812/MrKynastonsFamousDance.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Find_43146.log 1844 Log file, useful mostly for debugging
Tune-4314-MrKynastonsFamousDance.abc 159 ABC music file with the extracted tune(s)
Tune-4314-MrKynastonsFamousDance.ps 6 PostScript
Tune-4314-MrKynastonsFamousDance.txt 159 Plain-text file with the extracted tune(s)
Tune-4314-get.log 4316 Log file, useful mostly for debugging
Tune-43141-DanielWright_ECPMH.abc 155 ABC music file with the extracted tune(s)
Tune-43141-DanielWright_ECPMH.ps 6 PostScript
Tune-43141-DanielWright_ECPMH.txt 155 Plain-text file with the extracted tune(s)
Tune-43141-get.log 4278 Log file, useful mostly for debugging
Tune-43142-get.log 1433 Log file, useful mostly for debugging
Tune-43145-get.log 1315 Log file, useful mostly for debugging
These files should be available for 24 hours.