Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/3D2006/PaulBackstrom-LfD.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7321-PaulBackstrom-LfD.ps) >>/Users/jc/w/tmp/Tune-7321-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/3D2006/PaulBackstrom-LfD.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-7321-PaulBackstrom-LfD.abc 156 ABC music file with the extracted tune(s)
Tune-7321-PaulBackstrom-LfD.ps 6 PostScript
Tune-7321-PaulBackstrom-LfD.txt 156 Plain-text file with the extracted tune(s)
Tune-7321-get.log 4223 Log file, useful mostly for debugging
Tune-73210-10461_St_Patricks_Day_in_the_Morning.abc 730 ABC music file with the extracted tune(s)
Tune-73210-10461_St_Patricks_Day_in_the_Morning.txt 730 Plain-text file with the extracted tune(s)
Tune-73210-get.log 8394 Log file, useful mostly for debugging
Tune-73211-24CountryDances_1805_Gray_Thompson.abc 173 ABC music file with the extracted tune(s)
Tune-73211-24CountryDances_1805_Gray_Thompson.ps 6 PostScript
Tune-73211-24CountryDances_1805_Gray_Thompson.txt 173 Plain-text file with the extracted tune(s)
Tune-73211-get.log 4628 Log file, useful mostly for debugging
Tune-73213-get.log 8502 Log file, useful mostly for debugging
Tune-73215-get.log 13338 Log file, useful mostly for debugging
Tune-73216-get.log 5705 Log file, useful mostly for debugging
Tune-73218-get.log 4551 Log file, useful mostly for debugging
Tune-73219-get.log 5554 Log file, useful mostly for debugging
These files should be available for 24 hours.