Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/Anonymous1/HillCountryTunes.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2348-HillCountryTunes.ps) >>/Users/jc/w/tmp/Tune-2348-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Anonymous1/HillCountryTunes.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_23480.log 288546 Log file, useful mostly for debugging
Tune-2348-HillCountryTunes.abc 159 ABC music file with the extracted tune(s)
Tune-2348-HillCountryTunes.ps 6 PostScript
Tune-2348-HillCountryTunes.txt 159 Plain-text file with the extracted tune(s)
Tune-2348-get.log 4228 Log file, useful mostly for debugging
Tune-23481-get.log 4622 Log file, useful mostly for debugging
Tune-23482-get.log 1424 Log file, useful mostly for debugging
Tune-23485-get.log 5721 Log file, useful mostly for debugging
Tune-23486-get.log 2930 Log file, useful mostly for debugging
Tune-23489-get.log 4669 Log file, useful mostly for debugging
These files should be available for 24 hours.