Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/CPC/RobertBremner_CSRCD1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3091-RobertBremner_CSRCD1.ps) >>/Users/jc/w/tmp/Tune-3091-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/CPC/RobertBremner_CSRCD1.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-3091-RobertBremner_CSRCD1.abc 156 ABC music file with the extracted tune(s)
Tune-3091-RobertBremner_CSRCD1.ps 6 PostScript
Tune-3091-RobertBremner_CSRCD1.txt 156 Plain-text file with the extracted tune(s)
Tune-3091-get.log 4268 Log file, useful mostly for debugging
Tune-30910-get.log 8806 Log file, useful mostly for debugging
Tune-30913-get.log 4951 Log file, useful mostly for debugging
Tune-30914-get.log 8197 Log file, useful mostly for debugging
Tune-30915-get.log 9048 Log file, useful mostly for debugging
Tune-30919-get.log 4228 Log file, useful mostly for debugging
These files should be available for 24 hours.