Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/1794/Pringle.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2815-Pringle.ps) >>/Users/jc/w/tmp/Tune-2815-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/1794/Pringle.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Find_28155.log 1510 Log file, useful mostly for debugging
Tune-2815-Pringle.abc 144 ABC music file with the extracted tune(s)
Tune-2815-Pringle.ps 6 PostScript
Tune-2815-Pringle.txt 144 Plain-text file with the extracted tune(s)
Tune-2815-get.log 4001 Log file, useful mostly for debugging
Tune-28150-get.log 1300 Log file, useful mostly for debugging
Tune-28156-24CountryDances_1805_Gray_Thompson.abc 171 ABC music file with the extracted tune(s)
Tune-28156-24CountryDances_1805_Gray_Thompson.pdf 2217 Portable Data Format
Tune-28156-24CountryDances_1805_Gray_Thompson.ps 6 PostScript
Tune-28156-24CountryDances_1805_Gray_Thompson.txt 171 Plain-text file with the extracted tune(s)
Tune-28156-get.log 5576 Log file, useful mostly for debugging
Tune-28157-get.log 5622 Log file, useful mostly for debugging
These files should be available for 24 hours.