Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/NewColl44Cot/Gow-CSR2-abc1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8158-Gow-CSR2-abc1.ps) >>/Users/jc/w/tmp/Tune-8158-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/NewColl44Cot/Gow-CSR2-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-8158-Gow-CSR2-abc1.abc 158 ABC music file with the extracted tune(s)
Tune-8158-Gow-CSR2-abc1.ps 6 PostScript
Tune-8158-Gow-CSR2-abc1.txt 158 Plain-text file with the extracted tune(s)
Tune-8158-get.log 4177 Log file, useful mostly for debugging
Tune-81580-get.log 4373 Log file, useful mostly for debugging
Tune-81584-get.log 5088 Log file, useful mostly for debugging
Tune-81585-get.log 5274 Log file, useful mostly for debugging
Tune-81586-get.log 4153 Log file, useful mostly for debugging
Tune-81587-AMHSI_abc1.abc 155 ABC music file with the extracted tune(s)
Tune-81587-AMHSI_abc1.txt 155 Plain-text file with the extracted tune(s)
Tune-81587-get.log 7633 Log file, useful mostly for debugging
Tune-81588-get.log 7493 Log file, useful mostly for debugging
Tune-81589-get.log 5434 Log file, useful mostly for debugging
These files should be available for 24 hours.