Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/12Minuets12Dances/24CountryDances_1762_Thompson.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4115-24CountryDances_1762_Thompson.ps) >>/Users/jc/w/tmp/Tune-4115-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/12Minuets12Dances/24CountryDances_1762_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_4115.log 834164 Log file, useful mostly for debugging
Coll_41150.log 567258 Log file, useful mostly for debugging
Coll_41154.log 268876 Log file, useful mostly for debugging
Coll_41156.log 260446 Log file, useful mostly for debugging
Coll_41158.log 921838 Log file, useful mostly for debugging
Form_41153.log 1765 Log file, useful mostly for debugging
Tune-4115-24CountryDances_1762_Thompson.abc 179 ABC music file with the extracted tune(s)
Tune-4115-24CountryDances_1762_Thompson.ps 6 PostScript
Tune-4115-24CountryDances_1762_Thompson.txt 179 Plain-text file with the extracted tune(s)
Tune-4115-get.log 4541 Log file, useful mostly for debugging
Tune-41154-get.log 17794 Log file, useful mostly for debugging
Tune-41159-get.log 62366 Log file, useful mostly for debugging
These files should be available for 24 hours.