Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/Glen2/Gow-CSR-abc1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6343-Gow-CSR-abc1.ps) >>/Users/jc/w/tmp/Tune-6343-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Glen2/Gow-CSR-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
Form_63431.log 797 Log file, useful mostly for debugging
Tune-6343-Gow-CSR-abc1.abc 150 ABC music file with the extracted tune(s)
Tune-6343-Gow-CSR-abc1.ps 6 PostScript
Tune-6343-Gow-CSR-abc1.txt 150 Plain-text file with the extracted tune(s)
Tune-6343-get.log 4112 Log file, useful mostly for debugging
Tune-63430-get.log 4230 Log file, useful mostly for debugging
Tune-63436-get.log 5473 Log file, useful mostly for debugging
Tune-63439-10341_Loch_Earn.abc 508 ABC music file with the extracted tune(s)
Tune-63439-10341_Loch_Earn.ps 34664 PostScript
Tune-63439-10341_Loch_Earn.txt 508 Plain-text file with the extracted tune(s)
Tune-63439-get.log 4646 Log file, useful mostly for debugging
These files should be available for 24 hours.