Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/abc2/CaledonianMusicalRepository.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-308-CaledonianMusicalRepository.ps) >>/Users/jc/w/tmp/Tune-308-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/abc2/CaledonianMusicalRepository.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_30814.log 1087283 Log file, useful mostly for debugging
Coll_30871.log 1076084 Log file, useful mostly for debugging
Coll_30881.log 142892 Log file, useful mostly for debugging
Coll_30883.log 1043884 Log file, useful mostly for debugging
Form_30805.log 804 Log file, useful mostly for debugging
Form_30813.log 813 Log file, useful mostly for debugging
Form_30821.log 818 Log file, useful mostly for debugging
Form_30832.log 820 Log file, useful mostly for debugging
Form_30840.log 827 Log file, useful mostly for debugging
Form_30851.log 825 Log file, useful mostly for debugging
Form_30859.log 807 Log file, useful mostly for debugging
Form_30865.log 822 Log file, useful mostly for debugging
Form_30873.log 807 Log file, useful mostly for debugging
Form_30892.log 833 Log file, useful mostly for debugging
Tune-308-CaledonianMusicalRepository.abc 164 ABC music file with the extracted tune(s)
Tune-308-CaledonianMusicalRepository.ps 6 PostScript
Tune-308-CaledonianMusicalRepository.txt 164 Plain-text file with the extracted tune(s)
Tune-308-get.log 4404 Log file, useful mostly for debugging
Tune-30808-get.log 1550 Log file, useful mostly for debugging
Tune-30825-get.log 1550 Log file, useful mostly for debugging
Tune-30834-get.log 83895 Log file, useful mostly for debugging
Tune-30844-get.log 1550 Log file, useful mostly for debugging
Tune-30850-get.log 82686 Log file, useful mostly for debugging
Tune-30894-get.log 1492 Log file, useful mostly for debugging
Tune-30898-get.log 1402 Log file, useful mostly for debugging
These files should be available for 24 hours.