Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/jpg/GentlemansMagazine.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1417-GentlemansMagazine.ps) >>/Users/jc/w/tmp/Tune-1417-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/jpg/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-1417-GentlemansMagazine.abc 154 ABC music file with the extracted tune(s)
Tune-1417-GentlemansMagazine.ps 6 PostScript
Tune-1417-GentlemansMagazine.txt 154 Plain-text file with the extracted tune(s)
Tune-1417-dance.abc 143 ABC music file with the extracted tune(s)
Tune-1417-dance.ps 6 PostScript
Tune-1417-dance.txt 143 Plain-text file with the extracted tune(s)
Tune-1417-get.log 16049 Log file, useful mostly for debugging
Tune-14177-cont.abc 141 ABC music file with the extracted tune(s)
Tune-14177-cont.txt 141 Plain-text file with the extracted tune(s)
Tune-14177-get.log 8173 Log file, useful mostly for debugging
Tune-14178-get.log 9596 Log file, useful mostly for debugging
Tune-14179-get.log 3366 Log file, useful mostly for debugging
These files should be available for 24 hours.