Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/MCCD/IaST-abc1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-5620-IaST-abc1.ps) >>/Users/jc/w/tmp/Tune-5620-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/MCCD/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
Tune-5620-IaST-abc1.abc 146 ABC music file with the extracted tune(s)
Tune-5620-IaST-abc1.ps 6 PostScript
Tune-5620-IaST-abc1.txt 146 Plain-text file with the extracted tune(s)
Tune-5620-get.log 4045 Log file, useful mostly for debugging
Tune-56200-get.log 10577 Log file, useful mostly for debugging
Tune-56201-get.log 5778 Log file, useful mostly for debugging
Tune-56202-get.log 5452 Log file, useful mostly for debugging
Tune-56204-get.log 4123 Log file, useful mostly for debugging
Tune-56205-get.log 4315 Log file, useful mostly for debugging
Tune-56206-get.log 5484 Log file, useful mostly for debugging
Tune-56207-get.log 8641 Log file, useful mostly for debugging
Tune-56208-get.log 5511 Log file, useful mostly for debugging
Tune-56209-get.log 10189 Log file, useful mostly for debugging
These files should be available for 24 hours.