pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-17802-ClattrinBrig.ps) >>/Users/jc/w/tmp/Tune-17802-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/Scotland/ClattrinBrig.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
Find_17802.log 1741 Log file, useful mostly for debugging
Tune-17802-ClattrinBrig.abc 498 ABC music file with the extracted tune(s)
Tune-17802-ClattrinBrig.ps 36470 PostScript
Tune-17802-ClattrinBrig.txt 498 Plain-text file with the extracted tune(s)
Tune-17802-get.log 4369 Log file, useful mostly for debugging
These files should be available for 24 hours.