Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/Crystal/HaandMeDoonDaFiddle.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4986-HaandMeDoonDaFiddle.ps) >>/Users/jc/w/tmp/Tune-4986-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Crystal/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
Tune-4986-HaandMeDoonDaFiddle.abc 159 ABC music file with the extracted tune(s)
Tune-4986-HaandMeDoonDaFiddle.ps 6 PostScript
Tune-4986-HaandMeDoonDaFiddle.txt 159 Plain-text file with the extracted tune(s)
Tune-4986-get.log 4275 Log file, useful mostly for debugging
Tune-49861-Pioneer.abc 146 ABC music file with the extracted tune(s)
Tune-49861-Pioneer.txt 146 Plain-text file with the extracted tune(s)
Tune-49861-get.log 3142 Log file, useful mostly for debugging
Tune-49862-get.log 4396 Log file, useful mostly for debugging
Tune-49868-get.log 7906 Log file, useful mostly for debugging
Tune-49869-24CountryDances_1778_Thompson.abc 168 ABC music file with the extracted tune(s)
Tune-49869-24CountryDances_1778_Thompson.ps 6 PostScript
Tune-49869-24CountryDances_1778_Thompson.txt 168 Plain-text file with the extracted tune(s)
Tune-49869-get.log 5763 Log file, useful mostly for debugging
These files should be available for 24 hours.