Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/reel/ERM-V1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4911-ERM-V1.ps) >>/Users/jc/w/tmp/Tune-4911-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/reel/ERM-V1.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_49112.log 273612 Log file, useful mostly for debugging
Tune-4911-ERM-V1.abc 143 ABC music file with the extracted tune(s)
Tune-4911-ERM-V1.ps 6 PostScript
Tune-4911-ERM-V1.txt 143 Plain-text file with the extracted tune(s)
Tune-4911-get.log 3984 Log file, useful mostly for debugging
Tune-49110-get.log 4637 Log file, useful mostly for debugging
Tune-49113-Garryowen_with_variations_.abc 161 ABC music file with the extracted tune(s)
Tune-49113-Garryowen_with_variations_.ps 6 PostScript
Tune-49113-Garryowen_with_variations_.txt 161 Plain-text file with the extracted tune(s)
Tune-49113-get.log 4315 Log file, useful mostly for debugging
Tune-49116-get.log 3090 Log file, useful mostly for debugging
Tune-49116-proto.abc 141 ABC music file with the extracted tune(s)
Tune-49116-proto.txt 141 Plain-text file with the extracted tune(s)
Tune-49118-HenryFord_GoodMorning.abc 157 ABC music file with the extracted tune(s)
Tune-49118-HenryFord_GoodMorning.txt 157 Plain-text file with the extracted tune(s)
Tune-49118-get.log 3374 Log file, useful mostly for debugging
These files should be available for 24 hours.