pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-89082-CaptainMcGuire_D_AABBA.ps) >>/Users/jc/w/tmp/Tune-89082-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/Scotland/reel/CaptainMcGuire_D_AABBA.abc

Error exit status 256; here are some files to check:
[P=get.cgi V=1/1 B=0 scale=0.60 512x512 PNG]
filesizedescription
Tune-89082-CaptainMcGuire_D_AABBA.abc 669 ABC music file with the extracted tune(s)
Tune-89082-CaptainMcGuire_D_AABBA.ps 35784 PostScript
Tune-89082-CaptainMcGuire_D_AABBA.txt 669 Plain-text file with the extracted tune(s)
Tune-89082-get.log 4469 Log file, useful mostly for debugging
These files should be available for 24 hours.