pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-67693-JeanMartinOfAberdeen_D.ps) >>/Users/jc/w/tmp/Tune-67693-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/by/Muriel_Johnstone/reel/JeanMartinOfAberdeen_D.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-67693-JeanMartinOfAberdeen_D.abc 642 ABC music file with the extracted tune(s)
Tune-67693-JeanMartinOfAberdeen_D.ps 39316 PostScript
Tune-67693-JeanMartinOfAberdeen_D.txt 642 Plain-text file with the extracted tune(s)
Tune-67693-get.log 4616 Log file, useful mostly for debugging
These files should be available for 24 hours.