pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-85171-16_Confesse.ps) >>/Users/jc/w/tmp/Tune-85171-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/FOEFDA/16_Confesse.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-85171-16_Confesse.abc 428 ABC music file with the extracted tune(s)
Tune-85171-16_Confesse.ps 33011 PostScript
Tune-85171-16_Confesse.txt 428 Plain-text file with the extracted tune(s)
Tune-85171-2062_Donald_Quaich.abc 444 ABC music file with the extracted tune(s)
Tune-85171-2062_Donald_Quaich.pdf 11708 Portable Data Format
Tune-85171-2062_Donald_Quaich.ps 34234 PostScript
Tune-85171-2062_Donald_Quaich.txt 444 Plain-text file with the extracted tune(s)
Tune-85171-get.log 18527 Log file, useful mostly for debugging
These files should be available for 24 hours.