pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-17770-Come_Along_With_Me_1.ps) >>/Users/jc/w/tmp/Tune-17770-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/mirror/kirby98.fsnet.co.uk/co/Come_Along_With_Me_1.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_17770.log 270949 Log file, useful mostly for debugging
Tune-17770-Come_Along_With_Me_1.abc 204 ABC music file with the extracted tune(s)
Tune-17770-Come_Along_With_Me_1.ps 35008 PostScript
Tune-17770-Come_Along_With_Me_1.txt 204 Plain-text file with the extracted tune(s)
Tune-17770-get.log 4564 Log file, useful mostly for debugging
These files should be available for 24 hours.