pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-5174-Siamsa_Beirte.ps) >>/Users/jc/w/tmp/Tune-5174-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/shottish/Siamsa_Beirte.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Coll_51743.log 240774 Log file, useful mostly for debugging
Find_51744.log 1463 Log file, useful mostly for debugging
Tune-5174-Siamsa_Beirte.abc 2468 ABC music file with the extracted tune(s)
Tune-5174-Siamsa_Beirte.ps 44096 PostScript
Tune-5174-Siamsa_Beirte.txt 2468 Plain-text file with the extracted tune(s)
Tune-5174-get.log 7047 Log file, useful mostly for debugging
These files should be available for 24 hours.