pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-21090-B_and_E.ps) >>/Users/jc/w/tmp/Tune-21090-get.log 2>&1" returned status 256
http://fifedrum.org/resources/abc/B_and_E.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-21090-B_and_E.abc 326 ABC music file with the extracted tune(s)
Tune-21090-B_and_E.ps 36065 PostScript
Tune-21090-B_and_E.txt 326 Plain-text file with the extracted tune(s)
Tune-21090-get.log 4172 Log file, useful mostly for debugging
These files should be available for 24 hours.