Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/tune/IaST-abc1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4647-IaST-abc1.ps) >>/Users/jc/w/tmp/Tune-4647-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/tune/IaST-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
Coll_46476.log 230534 Log file, useful mostly for debugging
Tune-4647-IaST-abc1.abc 146 ABC music file with the extracted tune(s)
Tune-4647-IaST-abc1.ps 6 PostScript
Tune-4647-IaST-abc1.txt 146 Plain-text file with the extracted tune(s)
Tune-4647-get.log 9341 Log file, useful mostly for debugging
Tune-46470-get.log 8887 Log file, useful mostly for debugging
Tune-46471-get.log 3113 Log file, useful mostly for debugging
Tune-46472-get.log 3522 Log file, useful mostly for debugging
Tune-46474-SkillernChalloner_PCD2.abc 159 ABC music file with the extracted tune(s)
Tune-46474-SkillernChalloner_PCD2.ps 6 PostScript
Tune-46474-SkillernChalloner_PCD2.txt 159 Plain-text file with the extracted tune(s)
Tune-46474-get.log 4366 Log file, useful mostly for debugging
Tune-46475-get.log 4185 Log file, useful mostly for debugging
These files should be available for 24 hours.