Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/Book14/IaST-abc2.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-41859-IaST-abc2.ps) >>/Users/jc/w/tmp/Tune-41859-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Book14/IaST-abc2.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-41859-IaST-abc2.abc 148 ABC music file with the extracted tune(s)
Tune-41859-IaST-abc2.ps 6 PostScript
Tune-41859-IaST-abc2.txt 148 Plain-text file with the extracted tune(s)
Tune-41859-Rinnci_na_hEireann.abc 160 ABC music file with the extracted tune(s)
Tune-41859-Rinnci_na_hEireann.pdf 2217 Portable Data Format
Tune-41859-Rinnci_na_hEireann.ps 6 PostScript
Tune-41859-Rinnci_na_hEireann.txt 160 Plain-text file with the extracted tune(s)
Tune-41859-get.log 12540 Log file, useful mostly for debugging
These files should be available for 24 hours.