Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/tune/SCD_RoyGoldring_14SocialDancesFor2000.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-5405-SCD_RoyGoldring_14SocialDancesFor2000.ps) >>/Users/jc/w/tmp/Tune-5405-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/tune/SCD_RoyGoldring_14SocialDancesFor2000.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_5405.log 674011 Log file, useful mostly for debugging
Form_54059.log 872 Log file, useful mostly for debugging
Sess-54053.log 189740 Log file, useful mostly for debugging
Tune-5405-SCD_RoyGoldring_14SocialDancesFor2000.abc 174 ABC music file with the extracted tune(s)
Tune-5405-SCD_RoyGoldring_14SocialDancesFor2000.ps 6 PostScript
Tune-5405-SCD_RoyGoldring_14SocialDancesFor2000.txt 174 Plain-text file with the extracted tune(s)
Tune-5405-get.log 14135 Log file, useful mostly for debugging
Tune-54052-get.log 8919 Log file, useful mostly for debugging
Tune-54054-get.log 5530 Log file, useful mostly for debugging
Tune-54056-get.log 4519 Log file, useful mostly for debugging
Tune-54057-get.log 8567 Log file, useful mostly for debugging
Tune-54058-492_Sea_Flower.abc 576 ABC music file with the extracted tune(s)
Tune-54058-492_Sea_Flower.pdf 10465 Portable Data Format
Tune-54058-492_Sea_Flower.ps 33388 PostScript
Tune-54058-492_Sea_Flower.txt 576 Plain-text file with the extracted tune(s)
Tune-54058-get.log 5408 Log file, useful mostly for debugging
These files should be available for 24 hours.