Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/Gems/RobertBremner_CSRCD2.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2473-RobertBremner_CSRCD2.ps) >>/Users/jc/w/tmp/Tune-2473-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Gems/RobertBremner_CSRCD2.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_24737.log 289950 Log file, useful mostly for debugging
Coll_24738.log 282925 Log file, useful mostly for debugging
Tune-2473-RobertBremner_CSRCD2.abc 157 ABC music file with the extracted tune(s)
Tune-2473-RobertBremner_CSRCD2.ps 6 PostScript
Tune-2473-RobertBremner_CSRCD2.txt 157 Plain-text file with the extracted tune(s)
Tune-2473-get.log 9344 Log file, useful mostly for debugging
Tune-24730-get.log 1394 Log file, useful mostly for debugging
Tune-24731-12SelectedCountryDances_1772_Rutherford.abc 181 ABC music file with the extracted tune(s)
Tune-24731-12SelectedCountryDances_1772_Rutherford.ps 6 PostScript
Tune-24731-12SelectedCountryDances_1772_Rutherford.txt 181 Plain-text file with the extracted tune(s)
Tune-24731-get.log 4634 Log file, useful mostly for debugging
Tune-24734-get.log 1394 Log file, useful mostly for debugging
These files should be available for 24 hours.