pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4393-LiverpoolJacksReel.ps) >>/Users/jc/w/tmp/Tune-4393-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/ryan-cole/Tunes/LiverpoolJacksReel.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_43939.log 157767 Log file, useful mostly for debugging
Tune-4393-LiverpoolJacksReel.abc 495 ABC music file with the extracted tune(s)
Tune-4393-LiverpoolJacksReel.ps 36502 PostScript
Tune-4393-LiverpoolJacksReel.txt 495 Plain-text file with the extracted tune(s)
Tune-4393-get.log 4703 Log file, useful mostly for debugging
Tune-43930-get.log 8728 Log file, useful mostly for debugging
Tune-43931-get.log 10693 Log file, useful mostly for debugging
Tune-43933-LondonMagazine.abc 151 ABC music file with the extracted tune(s)
Tune-43933-LondonMagazine.ps 6 PostScript
Tune-43933-LondonMagazine.txt 151 Plain-text file with the extracted tune(s)
Tune-43933-get.log 4075 Log file, useful mostly for debugging
Tune-43934-get.log 3582 Log file, useful mostly for debugging
Tune-43939-get.log 8329 Log file, useful mostly for debugging
These files should be available for 24 hours.