pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4831-097_Round_Come_Ye_Schoolmates.ps) >>/Users/jc/w/tmp/Tune-4831-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/EverydaySongBook/097_Round_Come_Ye_Schoolmates.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_4831.log 266066 Log file, useful mostly for debugging
Coll_48311.log 717592 Log file, useful mostly for debugging
Coll_48315.log 965891 Log file, useful mostly for debugging
Find_48315.log 1509 Log file, useful mostly for debugging
Form_48311.log 859 Log file, useful mostly for debugging
Form_48315.log 836 Log file, useful mostly for debugging
Form_48317.log 859 Log file, useful mostly for debugging
Tune-4831-097_Round_Come_Ye_Schoolmates.abc 643 ABC music file with the extracted tune(s)
Tune-4831-097_Round_Come_Ye_Schoolmates.ps 32355 PostScript
Tune-4831-097_Round_Come_Ye_Schoolmates.txt 643 Plain-text file with the extracted tune(s)
Tune-4831-get.log 10025 Log file, useful mostly for debugging
Tune-48315-get.log 11782 Log file, useful mostly for debugging
Tune-48319-get.log 3506 Log file, useful mostly for debugging
These files should be available for 24 hours.