pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-14018-Schwabe_or_Hessian_Dance.ps) >>/Users/jc/w/tmp/Tune-14018-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/JohnWalsh/Schwabe_or_Hessian_Dance.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Coll_14018.log 461209 Log file, useful mostly for debugging
Tune-14018-Schwabe_or_Hessian_Dance.abc 1293 ABC music file with the extracted tune(s)
Tune-14018-Schwabe_or_Hessian_Dance.ps 36692 PostScript
Tune-14018-Schwabe_or_Hessian_Dance.txt 1293 Plain-text file with the extracted tune(s)
Tune-14018-get.log 5262 Log file, useful mostly for debugging
These files should be available for 24 hours.