pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9010-Jefferson_and_Liberty_1-Am-32-2.ps) >>/Users/jc/w/tmp/Tune-9010-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/session/Vintage/Jefferson_and_Liberty/Jefferson_and_Liberty_1-Am-32-2.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-9010-Jefferson_and_Liberty_1-Am-32-2.abc 451 ABC music file with the extracted tune(s)
Tune-9010-Jefferson_and_Liberty_1-Am-32-2.ps 34403 PostScript
Tune-9010-Jefferson_and_Liberty_1-Am-32-2.txt 451 Plain-text file with the extracted tune(s)
Tune-9010-get.log 5492 Log file, useful mostly for debugging
Tune-90100-get.log 177016 Log file, useful mostly for debugging
Tune-90100-r.abc 524 ABC music file with the extracted tune(s)
Tune-90100-r.txt 524 Plain-text file with the extracted tune(s)
Tune-90107-Bessie_Bell_and_Mary_Gray.abc 0 ABC music file with the extracted tune(s)
Tune-90107-Bessie_Bell_and_Mary_Gray.ps 6 PostScript
Tune-90107-Bessie_Bell_and_Mary_Gray.txt 0 Plain-text file with the extracted tune(s)
Tune-90107-get.log 6727 Log file, useful mostly for debugging
These files should be available for 24 hours.