pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7637-Millers_Jigg.ps) >>/Users/jc/w/tmp/Tune-7637-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/JohnWalsh/Millers_Jigg.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-7637-Millers_Jigg.abc 2663 ABC music file with the extracted tune(s)
Tune-7637-Millers_Jigg.ps 36081 PostScript
Tune-7637-Millers_Jigg.txt 2663 Plain-text file with the extracted tune(s)
Tune-7637-get.log 4468 Log file, useful mostly for debugging
Tune-76370-Waltz_MonasBirthday.abc 2936 ABC music file with the extracted tune(s)
Tune-76370-Waltz_MonasBirthday.gif 0 Graphics Interchange Format, the proprietary scan-line picture format
Tune-76370-Waltz_MonasBirthday.ps 54681 PostScript
Tune-76370-Waltz_MonasBirthday.txt 2936 Plain-text file with the extracted tune(s)
Tune-76370-get.log 5493 Log file, useful mostly for debugging
Tune-76372-get.log 5356 Log file, useful mostly for debugging
Tune-76373-get.log 4117 Log file, useful mostly for debugging
Tune-76376-get.log 5805 Log file, useful mostly for debugging
These files should be available for 24 hours.