pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-86836-Jenny_Dang_The_Weaver_D.ps) >>/Users/jc/w/tmp/Tune-86836-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/session/reel/Jenny_Dang_The_Weaver_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
Tune-86836-Jenny_Dang_The_Weaver_D.abc 260 ABC music file with the extracted tune(s)
Tune-86836-Jenny_Dang_The_Weaver_D.ps 33785 PostScript
Tune-86836-Jenny_Dang_The_Weaver_D.txt 260 Plain-text file with the extracted tune(s)
Tune-86836-get.log 4619 Log file, useful mostly for debugging
These files should be available for 24 hours.