pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7989-proto.ps) >>/Users/jc/w/tmp/Tune-7989-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/DftY/1782/Thompson/proto.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.65 512x512 PNG]
filesizedescription
Tune-7989-get.log 10390 Log file, useful mostly for debugging
Tune-7989-proto.abc 534 ABC music file with the extracted tune(s)
Tune-7989-proto.ps 30924 PostScript
Tune-7989-proto.txt 534 Plain-text file with the extracted tune(s)
Tune-79891-get.log 4224 Log file, useful mostly for debugging
Tune-79893-get.log 4490 Log file, useful mostly for debugging
Tune-79896-get.log 4489 Log file, useful mostly for debugging
Tune-79897-get.log 3993 Log file, useful mostly for debugging
Tune-79898-blank6-001.svg 681 Scalable Vector Graphics format
Tune-79898-blank6.abc 98 ABC music file with the extracted tune(s)
Tune-79898-blank6.txt 98 Plain-text file with the extracted tune(s)
Tune-79898-get.log 8461 Log file, useful mostly for debugging
These files should be available for 24 hours.