pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7894-NewCenturyHornpipe.ps) >>/Users/jc/w/tmp/Tune-7894-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/ryan-cole/Tunes/NewCenturyHornpipe.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-7894-NewCenturyHornpipe.abc 436 ABC music file with the extracted tune(s)
Tune-7894-NewCenturyHornpipe.ps 36630 PostScript
Tune-7894-NewCenturyHornpipe.txt 436 Plain-text file with the extracted tune(s)
Tune-7894-get.log 7913 Log file, useful mostly for debugging
Tune-78940-get.log 4369 Log file, useful mostly for debugging
Tune-78944-get.log 5433 Log file, useful mostly for debugging
Tune-78945-get.log 3542 Log file, useful mostly for debugging
These files should be available for 24 hours.