Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/SliabhLuachroOnParade/Landrin_Potpourri.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2269-Landrin_Potpourri.ps) >>/Users/jc/w/tmp/Tune-2269-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/SliabhLuachroOnParade/Landrin_Potpourri.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_22692.log 412211 Log file, useful mostly for debugging
Coll_22696.log 165567 Log file, useful mostly for debugging
Tune-2269-Landrin_Potpourri.abc 171 ABC music file with the extracted tune(s)
Tune-2269-Landrin_Potpourri.ps 6 PostScript
Tune-2269-Landrin_Potpourri.txt 171 Plain-text file with the extracted tune(s)
Tune-2269-get.log 15329 Log file, useful mostly for debugging
Tune-22690-get.log 7122 Log file, useful mostly for debugging
Tune-22694-get.log 9270 Log file, useful mostly for debugging
Tune-22697-get.log 4537 Log file, useful mostly for debugging
Tune-22698-get.log 10816 Log file, useful mostly for debugging
Tune-22699-get.log 7891 Log file, useful mostly for debugging
These files should be available for 24 hours.