pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6468-21021_Hark_the_Lark.ps) >>/Users/jc/w/tmp/Tune-6468-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/ERM/21021_Hark_the_Lark.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_6468.log 263256 Log file, useful mostly for debugging
Coll_64684.log 264661 Log file, useful mostly for debugging
Coll_64685.log 146672 Log file, useful mostly for debugging
Coll_64686.log 156995 Log file, useful mostly for debugging
Form_6468.log 834 Log file, useful mostly for debugging
Form_64680.log 888 Log file, useful mostly for debugging
Form_64682.log 2716 Log file, useful mostly for debugging
Form_64684.log 1726 Log file, useful mostly for debugging
Sess-64686.log 1144168 Log file, useful mostly for debugging
Tune-6468-21021_Hark_the_Lark.abc 813 ABC music file with the extracted tune(s)
Tune-6468-21021_Hark_the_Lark.ps 36951 PostScript
Tune-6468-21021_Hark_the_Lark.txt 813 Plain-text file with the extracted tune(s)
Tune-6468-get.log 9780 Log file, useful mostly for debugging
Tune-64687-endo.abc 100 ABC music file with the extracted tune(s)
Tune-64687-endo.ps 6 PostScript
Tune-64687-endo.txt 100 Plain-text file with the extracted tune(s)
Tune-64687-get.log 47299 Log file, useful mostly for debugging
These files should be available for 24 hours.