Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/BB50/24CountryDances_1805_Thompson.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1827-24CountryDances_1805_Thompson.ps) >>/Users/jc/w/tmp/Tune-1827-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/BB50/24CountryDances_1805_Thompson.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_18277.log 284330 Log file, useful mostly for debugging
Coll_18279.log 857206 Log file, useful mostly for debugging
Tune-1827-24CountryDances_1805_Thompson.abc 166 ABC music file with the extracted tune(s)
Tune-1827-24CountryDances_1805_Thompson.ps 6 PostScript
Tune-1827-24CountryDances_1805_Thompson.txt 166 Plain-text file with the extracted tune(s)
Tune-1827-get.log 4465 Log file, useful mostly for debugging
Tune-18273-get.log 1338 Log file, useful mostly for debugging
Tune-18275-get.log 1548 Log file, useful mostly for debugging
Tune-18279-Straight_Skillern.abc 156 ABC music file with the extracted tune(s)
Tune-18279-Straight_Skillern.ps 6 PostScript
Tune-18279-Straight_Skillern.txt 156 Plain-text file with the extracted tune(s)
Tune-18279-get.log 4152 Log file, useful mostly for debugging
These files should be available for 24 hours.