pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4866-383_Smilin_Katie_a_Reel.ps) >>/Users/jc/w/tmp/Tune-4866-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/WilliamChristie/383_Smilin_Katie_a_Reel.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Tune-4866-383_Smilin_Katie_a_Reel.abc 1199 ABC music file with the extracted tune(s)
Tune-4866-383_Smilin_Katie_a_Reel.ps 38288 PostScript
Tune-4866-383_Smilin_Katie_a_Reel.txt 1199 Plain-text file with the extracted tune(s)
Tune-4866-get.log 4780 Log file, useful mostly for debugging
These files should be available for 24 hours.