pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-5981-JockWilsonsBall.ps) >>/Users/jc/w/tmp/Tune-5981-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/500/JockWilsonsBall.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-5981-JockWilsonsBall.abc 451 ABC music file with the extracted tune(s)
Tune-5981-JockWilsonsBall.ps 34049 PostScript
Tune-5981-JockWilsonsBall.txt 451 Plain-text file with the extracted tune(s)
Tune-5981-get.log 4499 Log file, useful mostly for debugging
Tune-59811-get.log 22174 Log file, useful mostly for debugging
Tune-59813-get.log 3182 Log file, useful mostly for debugging
Tune-59815-get.log 1382 Log file, useful mostly for debugging
Tune-59817-get.log 5553 Log file, useful mostly for debugging
Tune-59818-get.log 4891 Log file, useful mostly for debugging
Tune-59819-get.log 8121 Log file, useful mostly for debugging
These files should be available for 24 hours.