pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4205-006-Mrs_Casey-V1.ps) >>/Users/jc/w/tmp/Tune-4205-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/HibernianMuse/006-Mrs_Casey-V1.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_4205.log 242811 Log file, useful mostly for debugging
Coll_42053.log 452810 Log file, useful mostly for debugging
Coll_42056.log 461210 Log file, useful mostly for debugging
Tune-4205-006-Mrs_Casey-V1.abc 889 ABC music file with the extracted tune(s)
Tune-4205-006-Mrs_Casey-V1.ps 37322 PostScript
Tune-4205-006-Mrs_Casey-V1.txt 889 Plain-text file with the extracted tune(s)
Tune-4205-get.log 8892 Log file, useful mostly for debugging
Tune-42052-get.log 1444 Log file, useful mostly for debugging
Tune-42053-get.log 6014 Log file, useful mostly for debugging
Tune-42054-get.log 4396 Log file, useful mostly for debugging
Tune-42057-get.log 3670 Log file, useful mostly for debugging
These files should be available for 24 hours.