Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/gavving-bin/book_of_rights.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2505-book_of_rights.ps) >>/Users/jc/w/tmp/Tune-2505-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/gavving-bin/book_of_rights.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-2505-book_of_rights.abc 158 ABC music file with the extracted tune(s)
Tune-2505-book_of_rights.ps 6 PostScript
Tune-2505-book_of_rights.txt 158 Plain-text file with the extracted tune(s)
Tune-2505-get.log 4192 Log file, useful mostly for debugging
Tune-25054-get.log 5075 Log file, useful mostly for debugging
Tune-25055-get.log 3214 Log file, useful mostly for debugging
Tune-25057-get.log 1387 Log file, useful mostly for debugging
Tune-25058-1251_Gaily_the_Troubadour.abc 2088 ABC music file with the extracted tune(s)
Tune-25058-1251_Gaily_the_Troubadour.gif 0 Graphics Interchange Format, the proprietary scan-line picture format
Tune-25058-1251_Gaily_the_Troubadour.ps 40556 PostScript
Tune-25058-1251_Gaily_the_Troubadour.txt 2088 Plain-text file with the extracted tune(s)
Tune-25058-get.log 5816 Log file, useful mostly for debugging
Tune-25059-get.log 5558 Log file, useful mostly for debugging
These files should be available for 24 hours.