pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-20926-AnnMaguiresSilverWedding_D.ps) >>/Users/jc/w/tmp/Tune-20926-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/Scotland/waltz/AnnMaguiresSilverWedding_D.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_20926.log 141597 Log file, useful mostly for debugging
Tune-20926-AnnMaguiresSilverWedding_D.abc 759 ABC music file with the extracted tune(s)
Tune-20926-AnnMaguiresSilverWedding_D.ps 38119 PostScript
Tune-20926-AnnMaguiresSilverWedding_D.txt 759 Plain-text file with the extracted tune(s)
Tune-20926-get.log 4759 Log file, useful mostly for debugging
These files should be available for 24 hours.