pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-57733-053_Jog_on.ps) >>/Users/jc/w/tmp/Tune-57733-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Playford/EDM/053_Jog_on.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.65 512x512 PNG]
filesizedescription
Tune-57733-053_Jog_on.abc 201 ABC music file with the extracted tune(s)
Tune-57733-053_Jog_on.ps 32691 PostScript
Tune-57733-053_Jog_on.txt 201 Plain-text file with the extracted tune(s)
Tune-57733-get.log 10867 Log file, useful mostly for debugging
These files should be available for 24 hours.