Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/Rare_Small/proto.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4161-proto.ps) >>/Users/jc/w/tmp/Tune-4161-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Rare_Small/proto.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_41619.log 836 Log file, useful mostly for debugging
Tune-4161-get.log 8934 Log file, useful mostly for debugging
Tune-4161-proto.abc 148 ABC music file with the extracted tune(s)
Tune-4161-proto.ps 6 PostScript
Tune-4161-proto.txt 148 Plain-text file with the extracted tune(s)
Tune-41613-BonAccordCollection.abc 155 ABC music file with the extracted tune(s)
Tune-41613-BonAccordCollection.ps 6 PostScript
Tune-41613-BonAccordCollection.txt 155 Plain-text file with the extracted tune(s)
Tune-41613-get.log 4297 Log file, useful mostly for debugging
Tune-41615-get.log 1737 Log file, useful mostly for debugging
Tune-41618-ViolaRuth_AmericanSD.abc 157 ABC music file with the extracted tune(s)
Tune-41618-ViolaRuth_AmericanSD.ps 6 PostScript
Tune-41618-ViolaRuth_AmericanSD.txt 157 Plain-text file with the extracted tune(s)
Tune-41618-get.log 9402 Log file, useful mostly for debugging
These files should be available for 24 hours.