Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/Scotia/1769_Bremner_SRCD.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6956-1769_Bremner_SRCD.ps) >>/Users/jc/w/tmp/Tune-6956-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Scotia/1769_Bremner_SRCD.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_69562.log 294612 Log file, useful mostly for debugging
Tune-6956-1769_Bremner_SRCD.abc 156 ABC music file with the extracted tune(s)
Tune-6956-1769_Bremner_SRCD.ps 6 PostScript
Tune-6956-1769_Bremner_SRCD.txt 156 Plain-text file with the extracted tune(s)
Tune-6956-get.log 7281 Log file, useful mostly for debugging
Tune-69561-get.log 4145 Log file, useful mostly for debugging
Tune-69562-get.log 3936 Log file, useful mostly for debugging
Tune-69563-get.log 8446 Log file, useful mostly for debugging
Tune-69564-get.log 4757 Log file, useful mostly for debugging
Tune-69567-get.log 3402 Log file, useful mostly for debugging
Tune-69568-get.log 8247 Log file, useful mostly for debugging
Tune-69569-get.log 9137 Log file, useful mostly for debugging
These files should be available for 24 hours.