Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/Roy_Goldring/HaandMeDoonDaFiddle.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3369-HaandMeDoonDaFiddle.ps) >>/Users/jc/w/tmp/Tune-3369-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Roy_Goldring/HaandMeDoonDaFiddle.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_33690.log 436011 Log file, useful mostly for debugging
Coll_33691.log 451410 Log file, useful mostly for debugging
Coll_33695.log 438810 Log file, useful mostly for debugging
Coll_33696.log 430409 Log file, useful mostly for debugging
Coll_33697.log 454210 Log file, useful mostly for debugging
Tune-3369-HaandMeDoonDaFiddle.abc 164 ABC music file with the extracted tune(s)
Tune-3369-HaandMeDoonDaFiddle.ps 6 PostScript
Tune-3369-HaandMeDoonDaFiddle.txt 164 Plain-text file with the extracted tune(s)
Tune-3369-get.log 4301 Log file, useful mostly for debugging
Tune-33691-get.log 1417 Log file, useful mostly for debugging
Tune-33692-get.log 1429 Log file, useful mostly for debugging
These files should be available for 24 hours.