Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/MCCD/v2tune.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2120-v2tune.ps) >>/Users/jc/w/tmp/Tune-2120-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/MCCD/v2tune.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Form_21203.log 1082 Log file, useful mostly for debugging
Tune-2120-get.log 3980 Log file, useful mostly for debugging
Tune-2120-v2tune.abc 143 ABC music file with the extracted tune(s)
Tune-2120-v2tune.ps 6 PostScript
Tune-2120-v2tune.txt 143 Plain-text file with the extracted tune(s)
Tune-21201-JohnTreat_GftF2.abc 154 ABC music file with the extracted tune(s)
Tune-21201-JohnTreat_GftF2.pdf 2217 Portable Data Format
Tune-21201-JohnTreat_GftF2.ps 6 PostScript
Tune-21201-JohnTreat_GftF2.txt 154 Plain-text file with the extracted tune(s)
Tune-21201-get.log 5039 Log file, useful mostly for debugging
Tune-21202-RobertBremner_CSRCD1.abc 159 ABC music file with the extracted tune(s)
Tune-21202-RobertBremner_CSRCD1.ps 6 PostScript
Tune-21202-RobertBremner_CSRCD1.txt 159 Plain-text file with the extracted tune(s)
Tune-21202-get.log 18296 Log file, useful mostly for debugging
Tune-21203-Remick.abc 145 ABC music file with the extracted tune(s)
Tune-21203-Remick.ps 6 PostScript
Tune-21203-Remick.txt 145 Plain-text file with the extracted tune(s)
Tune-21203-get.log 3919 Log file, useful mostly for debugging
Tune-21204-get.log 4365 Log file, useful mostly for debugging
Tune-21206-get.log 4222 Log file, useful mostly for debugging
These files should be available for 24 hours.