Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/MM3/24CountryDances_1771_Randall.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7715-24CountryDances_1771_Randall.ps) >>/Users/jc/w/tmp/Tune-7715-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/MM3/24CountryDances_1771_Randall.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_7715.log 389705 Log file, useful mostly for debugging
Form_77152.log 920 Log file, useful mostly for debugging
Form_77155.log 895 Log file, useful mostly for debugging
Tune-7715-24CountryDances_1771_Randall.abc 164 ABC music file with the extracted tune(s)
Tune-7715-24CountryDances_1771_Randall.ps 6 PostScript
Tune-7715-24CountryDances_1771_Randall.txt 164 Plain-text file with the extracted tune(s)
Tune-7715-get.log 4430 Log file, useful mostly for debugging
Tune-77151-24CountryDances_1802_Thompson.abc 166 ABC music file with the extracted tune(s)
Tune-77151-24CountryDances_1802_Thompson.pdf 2217 Portable Data Format
Tune-77151-24CountryDances_1802_Thompson.ps 6 PostScript
Tune-77151-24CountryDances_1802_Thompson.txt 166 Plain-text file with the extracted tune(s)
Tune-77151-get.log 5433 Log file, useful mostly for debugging
Tune-77156-24CountryDances_1766_various.abc 165 ABC music file with the extracted tune(s)
Tune-77156-24CountryDances_1766_various.txt 165 Plain-text file with the extracted tune(s)
Tune-77156-get.log 3510 Log file, useful mostly for debugging
These files should be available for 24 hours.