pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2293-10682_Saw_You_Johnnie_Coming.ps) >>/Users/jc/w/tmp/Tune-2293-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/ERM/10682_Saw_You_Johnnie_Coming.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_22934.log 264661 Log file, useful mostly for debugging
Form_22933.log 954 Log file, useful mostly for debugging
Form_22934.log 849 Log file, useful mostly for debugging
Tune-2293-10682_Saw_You_Johnnie_Coming.abc 620 ABC music file with the extracted tune(s)
Tune-2293-10682_Saw_You_Johnnie_Coming.ps 34102 PostScript
Tune-2293-10682_Saw_You_Johnnie_Coming.txt 620 Plain-text file with the extracted tune(s)
Tune-2293-get.log 4795 Log file, useful mostly for debugging
Tune-22931-get.log 3078 Log file, useful mostly for debugging
Tune-22932-8074_Milk_Maid_The-001.svg 12043 Scalable Vector Graphics format
Tune-22932-8074_Milk_Maid_The.abc 361 ABC music file with the extracted tune(s)
Tune-22932-8074_Milk_Maid_The.txt 361 Plain-text file with the extracted tune(s)
Tune-22932-get.log 4296 Log file, useful mostly for debugging
Tune-22934-get.log 8313 Log file, useful mostly for debugging
Tune-22935-get.log 4303 Log file, useful mostly for debugging
These files should be available for 24 hours.