pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-744-SCOTBRV2.ps) >>/Users/jc/w/tmp/Tune-744-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/mirror/corneymusers/orig/SCOTBRV2.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_74400.log 136757 Log file, useful mostly for debugging
Coll_74437.log 134942 Log file, useful mostly for debugging
Coll_74486.log 264789 Log file, useful mostly for debugging
Form_74412.log 866 Log file, useful mostly for debugging
Form_74458.log 898 Log file, useful mostly for debugging
Tune-744-SCOTBRV2.abc 652 ABC music file with the extracted tune(s)
Tune-744-SCOTBRV2.ps 41626 PostScript
Tune-744-SCOTBRV2.txt 652 Plain-text file with the extracted tune(s)
Tune-744-get.log 4489 Log file, useful mostly for debugging
Tune-74421-get.log 3035 Log file, useful mostly for debugging
Tune-74428-get.log 3655 Log file, useful mostly for debugging
Tune-74449-get.log 15063 Log file, useful mostly for debugging
Tune-74464-get.log 3826 Log file, useful mostly for debugging
Tune-74477-get.log 4082 Log file, useful mostly for debugging
Tune-74497-get.log 3427 Log file, useful mostly for debugging
These files should be available for 24 hours.