pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-33033-Do_Passi_DG.ps) >>/Users/jc/w/tmp/Tune-33033-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/shottish/Do_Passi_DG.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-33033-Do_Passi_DG.abc 1346 ABC music file with the extracted tune(s)
Tune-33033-Do_Passi_DG.ps 42845 PostScript
Tune-33033-Do_Passi_DG.txt 1346 Plain-text file with the extracted tune(s)
Tune-33033-get.log 4977 Log file, useful mostly for debugging
These files should be available for 24 hours.