Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/Compleat_Tutor/dance.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3546-dance.ps) >>/Users/jc/w/tmp/Tune-3546-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Compleat_Tutor/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
Coll_3546.log 285739 Log file, useful mostly for debugging
Coll_35467.log 267471 Log file, useful mostly for debugging
Tune-3546-dance.abc 152 ABC music file with the extracted tune(s)
Tune-3546-dance.ps 6 PostScript
Tune-3546-dance.txt 152 Plain-text file with the extracted tune(s)
Tune-3546-get.log 4019 Log file, useful mostly for debugging
Tune-35464-get.log 4076 Log file, useful mostly for debugging
Tune-35465-get.log 5401 Log file, useful mostly for debugging
Tune-35466-get.log 3683 Log file, useful mostly for debugging
Tune-35467-get.log 4271 Log file, useful mostly for debugging
These files should be available for 24 hours.