pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-21443-Young_Fox.ps) >>/Users/jc/w/tmp/Tune-21443-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Thompson/Young_Fox.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-21443-Gow-CR-abc1.abc 148 ABC music file with the extracted tune(s)
Tune-21443-Gow-CR-abc1.pdf 2217 Portable Data Format
Tune-21443-Gow-CR-abc1.ps 6 PostScript
Tune-21443-Gow-CR-abc1.txt 148 Plain-text file with the extracted tune(s)
Tune-21443-Young_Fox.abc 544 ABC music file with the extracted tune(s)
Tune-21443-Young_Fox.ps 36779 PostScript
Tune-21443-Young_Fox.txt 544 Plain-text file with the extracted tune(s)
Tune-21443-get.log 9328 Log file, useful mostly for debugging
These files should be available for 24 hours.