Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/HUTB1/v3tune.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9754-v3tune.ps) >>/Users/jc/w/tmp/Tune-9754-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/HUTB1/v3tune.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-9754-get.log 9556 Log file, useful mostly for debugging
Tune-9754-v3tune.abc 144 ABC music file with the extracted tune(s)
Tune-9754-v3tune.ps 6 PostScript
Tune-9754-v3tune.txt 144 Plain-text file with the extracted tune(s)
Tune-97540-get.log 3566 Log file, useful mostly for debugging
Tune-97542-get.log 5058 Log file, useful mostly for debugging
Tune-97543-Gow-CSR2-abc1.abc 158 ABC music file with the extracted tune(s)
Tune-97543-Gow-CSR2-abc1.txt 158 Plain-text file with the extracted tune(s)
Tune-97543-get.log 8630 Log file, useful mostly for debugging
Tune-97544-get.log 5565 Log file, useful mostly for debugging
Tune-97547-ViolaRuth_Pioneer.abc 153 ABC music file with the extracted tune(s)
Tune-97547-ViolaRuth_Pioneer.pdf 2217 Portable Data Format
Tune-97547-ViolaRuth_Pioneer.ps 6 PostScript
Tune-97547-ViolaRuth_Pioneer.txt 153 Plain-text file with the extracted tune(s)
Tune-97547-get.log 12613 Log file, useful mostly for debugging
Tune-97548-get.log 8810 Log file, useful mostly for debugging
These files should be available for 24 hours.