pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7550-NealGowsWifeStrathspey.ps) >>/Users/jc/w/tmp/Tune-7550-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/ryan-cole/Tunes/NealGowsWifeStrathspey.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-7550-NealGowsWifeStrathspey.abc 695 ABC music file with the extracted tune(s)
Tune-7550-NealGowsWifeStrathspey.ps 40860 PostScript
Tune-7550-NealGowsWifeStrathspey.txt 695 Plain-text file with the extracted tune(s)
Tune-7550-get.log 4812 Log file, useful mostly for debugging
Tune-75500-get.log 8760 Log file, useful mostly for debugging
Tune-75504-24CountryDances_1818_Button_Whitaker.abc 173 ABC music file with the extracted tune(s)
Tune-75504-24CountryDances_1818_Button_Whitaker.ps 6 PostScript
Tune-75504-24CountryDances_1818_Button_Whitaker.txt 173 Plain-text file with the extracted tune(s)
Tune-75504-get.log 4660 Log file, useful mostly for debugging
Tune-75508-get.log 4597 Log file, useful mostly for debugging
These files should be available for 24 hours.