Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/1810/proto.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-253-proto.ps) >>/Users/jc/w/tmp/Tune-253-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/1810/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
Coll_25307.log 147997 Log file, useful mostly for debugging
Coll_25340.log 140792 Log file, useful mostly for debugging
Coll_25365.log 373324 Log file, useful mostly for debugging
Coll_25389.log 373325 Log file, useful mostly for debugging
Find_25308.log 1582 Log file, useful mostly for debugging
Find_25341.log 1510 Log file, useful mostly for debugging
Find_25348.log 1543 Log file, useful mostly for debugging
Find_25386.log 1542 Log file, useful mostly for debugging
Find_25392.log 1543 Log file, useful mostly for debugging
Form_25352.log 1012 Log file, useful mostly for debugging
Form_25380.log 1003 Log file, useful mostly for debugging
Tune-253-get.log 3942 Log file, useful mostly for debugging
Tune-253-proto.abc 142 ABC music file with the extracted tune(s)
Tune-253-proto.ps 6 PostScript
Tune-253-proto.txt 142 Plain-text file with the extracted tune(s)
Tune-25302-get.log 1300 Log file, useful mostly for debugging
Tune-25313-get.log 1263 Log file, useful mostly for debugging
Tune-25317-get.log 4949 Log file, useful mostly for debugging
Tune-25327-get.log 2888 Log file, useful mostly for debugging
Tune-25327-reel.abc 175 ABC music file with the extracted tune(s)
Tune-25327-reel.txt 175 Plain-text file with the extracted tune(s)
Tune-25360-get.log 5110 Log file, useful mostly for debugging
Tune-25382-get.log 1263 Log file, useful mostly for debugging
Tune-25399-get.log 1374 Log file, useful mostly for debugging
These files should be available for 24 hours.