Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/1772/24FavouriteDances_1784_Straight.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1707-24FavouriteDances_1784_Straight.ps) >>/Users/jc/w/tmp/Tune-1707-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/1772/24FavouriteDances_1784_Straight.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-1707-24FavouriteDances_1784_Straight.abc 168 ABC music file with the extracted tune(s)
Tune-1707-24FavouriteDances_1784_Straight.ps 6 PostScript
Tune-1707-24FavouriteDances_1784_Straight.txt 168 Plain-text file with the extracted tune(s)
Tune-1707-get.log 9245 Log file, useful mostly for debugging
Tune-17073-get.log 4418 Log file, useful mostly for debugging
Tune-17074-get.log 5394 Log file, useful mostly for debugging
Tune-17075-get.log 4022 Log file, useful mostly for debugging
Tune-17076-20575_Billy_Barlow.abc 620 ABC music file with the extracted tune(s)
Tune-17076-20575_Billy_Barlow.gif 0 Graphics Interchange Format, the proprietary scan-line picture format
Tune-17076-20575_Billy_Barlow.ps 34366 PostScript
Tune-17076-20575_Billy_Barlow.txt 620 Plain-text file with the extracted tune(s)
Tune-17076-get.log 5580 Log file, useful mostly for debugging
Tune-17077-get.log 4129 Log file, useful mostly for debugging
These files should be available for 24 hours.