Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/ONeills/Rare_Small/0148_Old_Plantation_Girls.abc/book0"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8213-book0.ps) >>/Users/jc/w/tmp/Tune-8213-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/ONeills/Rare_Small/0148_Old_Plantation_Girls.abc/book0

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.65 512x512 PNG]
filesizedescription
Tune-8213-book0.abc 182 ABC music file with the extracted tune(s)
Tune-8213-book0.ps 6 PostScript
Tune-8213-book0.txt 182 Plain-text file with the extracted tune(s)
Tune-8213-get.log 4153 Log file, useful mostly for debugging
Tune-82130-get.log 3192 Log file, useful mostly for debugging
Tune-82132-get.log 1396 Log file, useful mostly for debugging
Tune-82134-get.log 9486 Log file, useful mostly for debugging
Tune-82135-get.log 5444 Log file, useful mostly for debugging
Tune-82137-2282_Duke_of_Atholes_Strathspey.abc 922 ABC music file with the extracted tune(s)
Tune-82137-2282_Duke_of_Atholes_Strathspey.ps 38708 PostScript
Tune-82137-2282_Duke_of_Atholes_Strathspey.txt 922 Plain-text file with the extracted tune(s)
Tune-82137-get.log 5101 Log file, useful mostly for debugging
Tune-82138-get.log 1385 Log file, useful mostly for debugging
Tune-82139-get.log 4322 Log file, useful mostly for debugging
These files should be available for 24 hours.