pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-67020-Planxty_Toby_Peyton-Am-24-6.ps) >>/Users/jc/w/tmp/Tune-67020-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/session/OCarolan/waltz/Planxty_Toby_Peyton-Am-24-6.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-67020-Planxty_Toby_Peyton-Am-24-6.abc 650 ABC music file with the extracted tune(s)
Tune-67020-Planxty_Toby_Peyton-Am-24-6.ps 39015 PostScript
Tune-67020-Planxty_Toby_Peyton-Am-24-6.txt 650 Plain-text file with the extracted tune(s)
Tune-67020-get.log 5202 Log file, useful mostly for debugging
These files should be available for 24 hours.