Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/ECPMH/SCD_RoyGoldring_15SocialDances.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8576-SCD_RoyGoldring_15SocialDances.ps) >>/Users/jc/w/tmp/Tune-8576-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/ECPMH/SCD_RoyGoldring_15SocialDances.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_85767.log 489211 Log file, useful mostly for debugging
Tune-8576-SCD_RoyGoldring_15SocialDances.abc 168 ABC music file with the extracted tune(s)
Tune-8576-SCD_RoyGoldring_15SocialDances.ps 6 PostScript
Tune-8576-SCD_RoyGoldring_15SocialDances.txt 168 Plain-text file with the extracted tune(s)
Tune-8576-get.log 8879 Log file, useful mostly for debugging
Tune-85760-get.log 4637 Log file, useful mostly for debugging
Tune-85761-get.log 3238 Log file, useful mostly for debugging
Tune-85763-get.log 3428 Log file, useful mostly for debugging
Tune-85764-get.log 4720 Log file, useful mostly for debugging
Tune-85768-get.log 8659 Log file, useful mostly for debugging
Tune-85769-get.log 9742 Log file, useful mostly for debugging
These files should be available for 24 hours.