pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-66212-099_Limbricks_Lamentation.ps) >>/Users/jc/w/tmp/Tune-66212-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/HibernianMuse/099_Limbricks_Lamentation.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_66212.log 261851 Log file, useful mostly for debugging
Form_66212.log 1746 Log file, useful mostly for debugging
Tune-66212-099_Limbricks_Lamentation.abc 979 ABC music file with the extracted tune(s)
Tune-66212-099_Limbricks_Lamentation.ps 38812 PostScript
Tune-66212-099_Limbricks_Lamentation.txt 979 Plain-text file with the extracted tune(s)
Tune-66212-get.log 4819 Log file, useful mostly for debugging
These files should be available for 24 hours.