Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/dup/IaST-abc2.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-274-IaST-abc2.ps) >>/Users/jc/w/tmp/Tune-274-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/dup/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
Coll_27400.log 713660 Log file, useful mostly for debugging
Coll_27404.log 150579 Log file, useful mostly for debugging
Coll_27408.log 986271 Log file, useful mostly for debugging
Coll_27410.log 1270581 Log file, useful mostly for debugging
Coll_27413.log 1877448 Log file, useful mostly for debugging
Coll_27414.log 1276 Log file, useful mostly for debugging
Coll_27424.log 4480 Log file, useful mostly for debugging
Coll_27428.log 731210 Log file, useful mostly for debugging
Coll_27441.log 2515420 Log file, useful mostly for debugging
Coll_27442.log 157729 Log file, useful mostly for debugging
Coll_27446.log 714831 Log file, useful mostly for debugging
Coll_27457.log 797900 Log file, useful mostly for debugging
Coll_27461.log 1047111 Log file, useful mostly for debugging
Coll_27462.log 706640 Log file, useful mostly for debugging
Coll_27473.log 1184000 Log file, useful mostly for debugging
Coll_27481.log 706640 Log file, useful mostly for debugging
Coll_27482.log 782691 Log file, useful mostly for debugging
Coll_27487.log 1292810 Log file, useful mostly for debugging
Coll_27499.log 1905852 Log file, useful mostly for debugging
Find_27420.log 1622 Log file, useful mostly for debugging
Find_27432.log 1415 Log file, useful mostly for debugging
Form_27425.log 1096 Log file, useful mostly for debugging
Sess-27455.log 99191 Log file, useful mostly for debugging
Tune-274-IaST-abc2.abc 145 ABC music file with the extracted tune(s)
Tune-274-IaST-abc2.ps 6 PostScript
Tune-274-IaST-abc2.txt 145 Plain-text file with the extracted tune(s)
Tune-274-get.log 4020 Log file, useful mostly for debugging
Tune-2740-get.log 5076 Log file, useful mostly for debugging
Tune-27416-get.log 4709 Log file, useful mostly for debugging
Tune-27453-get.log 1618 Log file, useful mostly for debugging
These files should be available for 24 hours.