pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-55045-Negus.ps) >>/Users/jc/w/tmp/Tune-55045-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Thompson/Negus.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-55045-2046_Rob_an_Lugi.abc 499 ABC music file with the extracted tune(s)
Tune-55045-2046_Rob_an_Lugi.gif 0 Graphics Interchange Format, the proprietary scan-line picture format
Tune-55045-2046_Rob_an_Lugi.ps 34744 PostScript
Tune-55045-2046_Rob_an_Lugi.txt 499 Plain-text file with the extracted tune(s)
Tune-55045-Negus.abc 422 ABC music file with the extracted tune(s)
Tune-55045-Negus.ps 33661 PostScript
Tune-55045-Negus.txt 422 Plain-text file with the extracted tune(s)
Tune-55045-get.log 9659 Log file, useful mostly for debugging
These files should be available for 24 hours.