Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/Tunes/Gow-CSR4-abc1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2654-Gow-CSR4-abc1.ps) >>/Users/jc/w/tmp/Tune-2654-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Tunes/Gow-CSR4-abc1.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-2654-Gow-CSR4-abc1.abc 151 ABC music file with the extracted tune(s)
Tune-2654-Gow-CSR4-abc1.ps 6 PostScript
Tune-2654-Gow-CSR4-abc1.txt 151 Plain-text file with the extracted tune(s)
Tune-2654-get.log 4133 Log file, useful mostly for debugging
Tune-26540-get.log 4359 Log file, useful mostly for debugging
Tune-26541-get.log 5226 Log file, useful mostly for debugging
Tune-26542-get.log 14566 Log file, useful mostly for debugging
Tune-26543-get.log 3524 Log file, useful mostly for debugging
Tune-26544-get.log 9709 Log file, useful mostly for debugging
Tune-26546-get.log 9928 Log file, useful mostly for debugging
Tune-26547-get.log 15175 Log file, useful mostly for debugging
Tune-26548-get.log 10840 Log file, useful mostly for debugging
These files should be available for 24 hours.