Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/Sets/LondonMagazine.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4516-LondonMagazine.ps) >>/Users/jc/w/tmp/Tune-4516-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Sets/LondonMagazine.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_4516.log 386899 Log file, useful mostly for debugging
Tune-4516-LondonMagazine.abc 151 ABC music file with the extracted tune(s)
Tune-4516-LondonMagazine.ps 6 PostScript
Tune-4516-LondonMagazine.txt 151 Plain-text file with the extracted tune(s)
Tune-4516-get.log 4152 Log file, useful mostly for debugging
Tune-45160-get.log 1400 Log file, useful mostly for debugging
Tune-45162-get.log 1380 Log file, useful mostly for debugging
Tune-45163-JamesOswald_CPC-abc1.abc 159 ABC music file with the extracted tune(s)
Tune-45163-JamesOswald_CPC-abc1.txt 159 Plain-text file with the extracted tune(s)
Tune-45163-get.log 6590 Log file, useful mostly for debugging
Tune-45164-24CountryDances_1770.abc 159 ABC music file with the extracted tune(s)
Tune-45164-24CountryDances_1770.pdf 2217 Portable Data Format
Tune-45164-24CountryDances_1770.ps 6 PostScript
Tune-45164-24CountryDances_1770.txt 159 Plain-text file with the extracted tune(s)
Tune-45164-get.log 6606 Log file, useful mostly for debugging
Tune-45166-get.log 1369 Log file, useful mostly for debugging
Tune-45169-get.log 1389 Log file, useful mostly for debugging
These files should be available for 24 hours.