pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7160-RealBluesReel_BB.ps) >>/Users/jc/w/tmp/Tune-7160-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/mirror/BenBolker/RealBluesReel_BB.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_71600.log 250689 Log file, useful mostly for debugging
Form_71607.log 487 Log file, useful mostly for debugging
Tune-7160-RealBluesReel_BB.abc 449 ABC music file with the extracted tune(s)
Tune-7160-RealBluesReel_BB.ps 36273 PostScript
Tune-7160-RealBluesReel_BB.txt 449 Plain-text file with the extracted tune(s)
Tune-7160-get.log 4526 Log file, useful mostly for debugging
Tune-71602-get.log 1682 Log file, useful mostly for debugging
Tune-71605-get.log 3283 Log file, useful mostly for debugging
Tune-71606-get.log 1462 Log file, useful mostly for debugging
These files should be available for 24 hours.