Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/PDF/Gow-CSR1-abc2.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2345-Gow-CSR1-abc2.ps) >>/Users/jc/w/tmp/Tune-2345-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/PDF/Gow-CSR1-abc2.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-2345-Gow-CSR1-abc2.abc 149 ABC music file with the extracted tune(s)
Tune-2345-Gow-CSR1-abc2.ps 6 PostScript
Tune-2345-Gow-CSR1-abc2.txt 149 Plain-text file with the extracted tune(s)
Tune-2345-get.log 4121 Log file, useful mostly for debugging
Tune-23452-get.log 6180 Log file, useful mostly for debugging
Tune-23454-get.log 10744 Log file, useful mostly for debugging
Tune-23455-get.log 4417 Log file, useful mostly for debugging
Tune-23458-get.log 4138 Log file, useful mostly for debugging
Tune-23459-get.log 10134 Log file, useful mostly for debugging
These files should be available for 24 hours.