Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/MM2/dance.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9870-dance.ps) >>/Users/jc/w/tmp/Tune-9870-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/MM2/dance.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-9870-dance.abc 141 ABC music file with the extracted tune(s)
Tune-9870-dance.ps 6 PostScript
Tune-9870-dance.txt 141 Plain-text file with the extracted tune(s)
Tune-9870-get.log 5364 Log file, useful mostly for debugging
Tune-98704-get.log 1393 Log file, useful mostly for debugging
Tune-98705-get.log 1554 Log file, useful mostly for debugging
Tune-98706-EverydaySongBook1.abc 153 ABC music file with the extracted tune(s)
Tune-98706-EverydaySongBook1.ps 6 PostScript
Tune-98706-EverydaySongBook1.txt 153 Plain-text file with the extracted tune(s)
Tune-98706-get.log 8462 Log file, useful mostly for debugging
Tune-98707-get.log 4607 Log file, useful mostly for debugging
Tune-98708-get.log 1407 Log file, useful mostly for debugging
Tune-98709-get.log 13018 Log file, useful mostly for debugging
These files should be available for 24 hours.