Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/mp3/band8.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-5399-band8.ps) >>/Users/jc/w/tmp/Tune-5399-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/mp3/band8.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Find_5399.log 1818 Log file, useful mostly for debugging
Tune-5399-band8.abc 141 ABC music file with the extracted tune(s)
Tune-5399-band8.ps 6 PostScript
Tune-5399-band8.txt 141 Plain-text file with the extracted tune(s)
Tune-5399-get.log 9710 Log file, useful mostly for debugging
Tune-53990-Gow-CSR1-abc2.abc 152 ABC music file with the extracted tune(s)
Tune-53990-Gow-CSR1-abc2.pdf 2217 Portable Data Format
Tune-53990-Gow-CSR1-abc2.ps 6 PostScript
Tune-53990-Gow-CSR1-abc2.txt 152 Plain-text file with the extracted tune(s)
Tune-53990-get.log 9141 Log file, useful mostly for debugging
Tune-53991-get.log 6464 Log file, useful mostly for debugging
Tune-53995-get.log 9357 Log file, useful mostly for debugging
Tune-53996-get.log 1252 Log file, useful mostly for debugging
Tune-53998-IaST-abc2.abc 152 ABC music file with the extracted tune(s)
Tune-53998-IaST-abc2.ps 6 PostScript
Tune-53998-IaST-abc2.txt 152 Plain-text file with the extracted tune(s)
Tune-53998-get.log 8590 Log file, useful mostly for debugging
Tune-53999-get.log 4620 Log file, useful mostly for debugging
These files should be available for 24 hours.