pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8512-MayYarkersStrathspey_G-JC.ps) >>/Users/jc/w/tmp/Tune-8512-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/SCD/Book42/MayYarkersStrathspey_G-JC.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_85126.log 0 Log file, useful mostly for debugging
Find_85128.log 1483 Log file, useful mostly for debugging
Tune-8512-MayYarkersStrathspey_G-JC.abc 637 ABC music file with the extracted tune(s)
Tune-8512-MayYarkersStrathspey_G-JC.ps 40188 PostScript
Tune-8512-MayYarkersStrathspey_G-JC.txt 637 Plain-text file with the extracted tune(s)
Tune-8512-get.log 4876 Log file, useful mostly for debugging
Tune-85122-get.log 4332 Log file, useful mostly for debugging
Tune-85124-get.log 0 Log file, useful mostly for debugging
Tune-85128-get.log 3182 Log file, useful mostly for debugging
These files should be available for 24 hours.