Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/Latar_fr_Dalarna/SocialDances2002.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-5355-SocialDances2002.ps) >>/Users/jc/w/tmp/Tune-5355-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Latar_fr_Dalarna/SocialDances2002.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_53559.log 724190 Log file, useful mostly for debugging
Tune-5355-SocialDances2002.abc 165 ABC music file with the extracted tune(s)
Tune-5355-SocialDances2002.ps 6 PostScript
Tune-5355-SocialDances2002.txt 165 Plain-text file with the extracted tune(s)
Tune-5355-get.log 4264 Log file, useful mostly for debugging
Tune-53558-20781_Harrison_Sett_tune_1.abc 1127 ABC music file with the extracted tune(s)
Tune-53558-20781_Harrison_Sett_tune_1.gif 0 Graphics Interchange Format, the proprietary scan-line picture format
Tune-53558-20781_Harrison_Sett_tune_1.ps 36078 PostScript
Tune-53558-20781_Harrison_Sett_tune_1.txt 1127 Plain-text file with the extracted tune(s)
Tune-53558-get.log 5802 Log file, useful mostly for debugging
Tune-53559-get.log 1539 Log file, useful mostly for debugging
These files should be available for 24 hours.