Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/1801/24CountryDances_1812_JGray.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1033-24CountryDances_1812_JGray.ps) >>/Users/jc/w/tmp/Tune-1033-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/1801/24CountryDances_1812_JGray.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-1033-24CountryDances_1812_JGray.abc 163 ABC music file with the extracted tune(s)
Tune-1033-24CountryDances_1812_JGray.ps 6 PostScript
Tune-1033-24CountryDances_1812_JGray.txt 163 Plain-text file with the extracted tune(s)
Tune-1033-get.log 4404 Log file, useful mostly for debugging
Tune-10331-get.log 3584 Log file, useful mostly for debugging
Tune-10332-get.log 4662 Log file, useful mostly for debugging
Tune-10334-2084_the_Brig_o_Balater-001.svg 22292 Scalable Vector Graphics format
Tune-10334-2084_the_Brig_o_Balater.abc 569 ABC music file with the extracted tune(s)
Tune-10334-2084_the_Brig_o_Balater.txt 569 Plain-text file with the extracted tune(s)
Tune-10334-get.log 4396 Log file, useful mostly for debugging
Tune-10336-get.log 5572 Log file, useful mostly for debugging
Tune-10338-get.log 6025 Log file, useful mostly for debugging
These files should be available for 24 hours.