Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/1798/24CountryDances_1803_Preston.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-5964-24CountryDances_1803_Preston.ps) >>/Users/jc/w/tmp/Tune-5964-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/1798/24CountryDances_1803_Preston.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
List59641.log 162 Log file, useful mostly for debugging
List59645.log 166 Log file, useful mostly for debugging
Tune-5964-24CountryDances_1803_Preston.abc 165 ABC music file with the extracted tune(s)
Tune-5964-24CountryDances_1803_Preston.ps 6 PostScript
Tune-5964-24CountryDances_1803_Preston.txt 165 Plain-text file with the extracted tune(s)
Tune-5964-get.log 4446 Log file, useful mostly for debugging
Tune-59646-IgnatiusSancho_MCCD_v1.abc 159 ABC music file with the extracted tune(s)
Tune-59646-IgnatiusSancho_MCCD_v1.txt 159 Plain-text file with the extracted tune(s)
Tune-59646-get.log 3400 Log file, useful mostly for debugging
These files should be available for 24 hours.