Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/SocialDances2002/SkillernChalloner_PCD1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8011-SkillernChalloner_PCD1.ps) >>/Users/jc/w/tmp/Tune-8011-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/SocialDances2002/SkillernChalloner_PCD1.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Sess-80118.log 11847 Log file, useful mostly for debugging
Tune-8011-SkillernChalloner_PCD1.abc 171 ABC music file with the extracted tune(s)
Tune-8011-SkillernChalloner_PCD1.ps 6 PostScript
Tune-8011-SkillernChalloner_PCD1.txt 171 Plain-text file with the extracted tune(s)
Tune-8011-get.log 4385 Log file, useful mostly for debugging
Tune-80110-get.log 2978 Log file, useful mostly for debugging
Tune-80111-get.log 7928 Log file, useful mostly for debugging
Tune-80113-get.log 2930 Log file, useful mostly for debugging
Tune-80114-get.log 6479 Log file, useful mostly for debugging
Tune-80117-get.log 6782 Log file, useful mostly for debugging
Tune-80118-get.log 7978 Log file, useful mostly for debugging
These files should be available for 24 hours.