pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-5090-ScotReel03.ps) >>/Users/jc/w/tmp/Tune-5090-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/Klezmer/event/20171011/ScotReel03.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
Form_50901.log 837 Log file, useful mostly for debugging
Tune-5090-ScotReel03.abc 513 ABC music file with the extracted tune(s)
Tune-5090-ScotReel03.ps 35130 PostScript
Tune-5090-ScotReel03.txt 513 Plain-text file with the extracted tune(s)
Tune-5090-get.log 5509 Log file, useful mostly for debugging
Tune-50903-get.log 3228 Log file, useful mostly for debugging
These files should be available for 24 hours.