Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/Book09/GentlemansMagazine.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3863-GentlemansMagazine.ps) >>/Users/jc/w/tmp/Tune-3863-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Book09/GentlemansMagazine.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Tune-3863-GentlemansMagazine.abc 157 ABC music file with the extracted tune(s)
Tune-3863-GentlemansMagazine.ps 6 PostScript
Tune-3863-GentlemansMagazine.txt 157 Plain-text file with the extracted tune(s)
Tune-3863-get.log 7836 Log file, useful mostly for debugging
Tune-38630-get.log 3955 Log file, useful mostly for debugging
Tune-38631-get.log 8085 Log file, useful mostly for debugging
Tune-38632-get.log 4951 Log file, useful mostly for debugging
Tune-38635-get.log 9598 Log file, useful mostly for debugging
Tune-38636-get.log 26633 Log file, useful mostly for debugging
Tune-38638-24CountryDances_1774_Thompson.abc 166 ABC music file with the extracted tune(s)
Tune-38638-24CountryDances_1774_Thompson.ps 6 PostScript
Tune-38638-24CountryDances_1774_Thompson.txt 166 Plain-text file with the extracted tune(s)
Tune-38638-get.log 4513 Log file, useful mostly for debugging
These files should be available for 24 hours.