Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/Brown_Soffe/0801_Opera_dance.abc/misc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1075-misc.ps) >>/Users/jc/w/tmp/Tune-1075-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Brown_Soffe/0801_Opera_dance.abc/misc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.65 512x512 PNG]
filesizedescription
Find_10757.log 1471 Log file, useful mostly for debugging
Sess-10754.log 5188 Log file, useful mostly for debugging
Tune-1075-get.log 4038 Log file, useful mostly for debugging
Tune-1075-misc.abc 165 ABC music file with the extracted tune(s)
Tune-1075-misc.ps 6 PostScript
Tune-1075-misc.txt 165 Plain-text file with the extracted tune(s)
Tune-10751-get.log 1488 Log file, useful mostly for debugging
Tune-10754-get.log 4032 Log file, useful mostly for debugging
Tune-10755-get.log 5254 Log file, useful mostly for debugging
Tune-10756-get.log 2858 Log file, useful mostly for debugging
These files should be available for 24 hours.