Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/12Minuets12Dances/ERM-V2.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-5060-ERM-V2.ps) >>/Users/jc/w/tmp/Tune-5060-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/12Minuets12Dances/ERM-V2.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_50608.log 160442 Log file, useful mostly for debugging
Tune-5060-ERM-V2.abc 156 ABC music file with the extracted tune(s)
Tune-5060-ERM-V2.ps 6 PostScript
Tune-5060-ERM-V2.txt 156 Plain-text file with the extracted tune(s)
Tune-5060-get.log 4060 Log file, useful mostly for debugging
Tune-50602-get.log 10340 Log file, useful mostly for debugging
Tune-50604-get.log 4616 Log file, useful mostly for debugging
Tune-50605-get.log 4128 Log file, useful mostly for debugging
Tune-50606-George_Meikle.abc 155 ABC music file with the extracted tune(s)
Tune-50606-George_Meikle.ps 6 PostScript
Tune-50606-George_Meikle.txt 155 Plain-text file with the extracted tune(s)
Tune-50606-get.log 8121 Log file, useful mostly for debugging
Tune-50608-get.log 14698 Log file, useful mostly for debugging
Tune-50609-get.log 11627 Log file, useful mostly for debugging
These files should be available for 24 hours.