Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/song/LondonMagazine.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1224-LondonMagazine.ps) >>/Users/jc/w/tmp/Tune-1224-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/song/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
Tune-1224-LondonMagazine.abc 151 ABC music file with the extracted tune(s)
Tune-1224-LondonMagazine.ps 6 PostScript
Tune-1224-LondonMagazine.txt 151 Plain-text file with the extracted tune(s)
Tune-1224-get.log 4148 Log file, useful mostly for debugging
Tune-12243-get.log 5806 Log file, useful mostly for debugging
Tune-12245-Pioneer.abc 144 ABC music file with the extracted tune(s)
Tune-12245-Pioneer.ps 6 PostScript
Tune-12245-Pioneer.txt 144 Plain-text file with the extracted tune(s)
Tune-12245-get.log 8863 Log file, useful mostly for debugging
Tune-12246-SCD_Book49-V2.abc 152 ABC music file with the extracted tune(s)
Tune-12246-SCD_Book49-V2.ps 6 PostScript
Tune-12246-SCD_Book49-V2.txt 152 Plain-text file with the extracted tune(s)
Tune-12246-get.log 4066 Log file, useful mostly for debugging
These files should be available for 24 hours.