pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1827-JacksonsRollingJig.ps) >>/Users/jc/w/tmp/Tune-1827-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/ryan-cole/Tunes/JacksonsRollingJig.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-1827-JacksonsRollingJig.abc 491 ABC music file with the extracted tune(s)
Tune-1827-JacksonsRollingJig.ps 35192 PostScript
Tune-1827-JacksonsRollingJig.txt 491 Plain-text file with the extracted tune(s)
Tune-1827-get.log 4699 Log file, useful mostly for debugging
Tune-18271-get.log 4448 Log file, useful mostly for debugging
Tune-18272-Pioneer.abc 150 ABC music file with the extracted tune(s)
Tune-18272-Pioneer.pdf 2217 Portable Data Format
Tune-18272-Pioneer.ps 6 PostScript
Tune-18272-Pioneer.txt 150 Plain-text file with the extracted tune(s)
Tune-18272-get.log 4835 Log file, useful mostly for debugging
Tune-18273-get.log 9552 Log file, useful mostly for debugging
Tune-18274-get.log 5723 Log file, useful mostly for debugging
Tune-18275-get.log 4872 Log file, useful mostly for debugging
Tune-18278-get.log 1376 Log file, useful mostly for debugging
Tune-18279-get.log 4259 Log file, useful mostly for debugging
These files should be available for 24 hours.