Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/PWFT/_.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8848-_.ps) >>/Users/jc/w/tmp/Tune-8848-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/PWFT/_.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_88482.log 23751 Log file, useful mostly for debugging
Tune-8848-_.abc 138 ABC music file with the extracted tune(s)
Tune-8848-_.ps 6 PostScript
Tune-8848-_.txt 138 Plain-text file with the extracted tune(s)
Tune-8848-get.log 3877 Log file, useful mostly for debugging
Tune-88480-get.log 1396 Log file, useful mostly for debugging
Tune-88481-get.log 3080 Log file, useful mostly for debugging
Tune-88481-sett.abc 141 ABC music file with the extracted tune(s)
Tune-88481-sett.txt 141 Plain-text file with the extracted tune(s)
Tune-88484-get.log 1396 Log file, useful mostly for debugging
Tune-88489-get.log 1396 Log file, useful mostly for debugging
These files should be available for 24 hours.