pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-56918-097_le_Diable_an_lair.ps) >>/Users/jc/w/tmp/Tune-56918-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Stewart/SCAJMR/097_le_Diable_an_lair.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.65 512x512 PNG]
filesizedescription
Tune-56918-097_le_Diable_an_lair.abc 549 ABC music file with the extracted tune(s)
Tune-56918-097_le_Diable_an_lair.ps 33750 PostScript
Tune-56918-097_le_Diable_an_lair.txt 549 Plain-text file with the extracted tune(s)
Tune-56918-all.abc 158 ABC music file with the extracted tune(s)
Tune-56918-all.ps 6 PostScript
Tune-56918-all.txt 158 Plain-text file with the extracted tune(s)
Tune-56918-get.log 8671 Log file, useful mostly for debugging
These files should be available for 24 hours.