pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-86086-Mrs_Kennys_Barn_Dance.ps) >>/Users/jc/w/tmp/Tune-86086-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/hornpipe/Mrs_Kennys_Barn_Dance.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
Coll_86086.log 64724 Log file, useful mostly for debugging
Tune-86086-Mrs_Kennys_Barn_Dance.abc 641 ABC music file with the extracted tune(s)
Tune-86086-Mrs_Kennys_Barn_Dance.ps 38033 PostScript
Tune-86086-Mrs_Kennys_Barn_Dance.txt 641 Plain-text file with the extracted tune(s)
Tune-86086-get.log 4971 Log file, useful mostly for debugging
These files should be available for 24 hours.