pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9190-1784_Straight.ps) >>/Users/jc/w/tmp/Tune-9190-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/dfty/1784_Straight.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Coll_91903.log 95365 Log file, useful mostly for debugging
Form_9190.log 4127 Log file, useful mostly for debugging
Form_91905.log 1778 Log file, useful mostly for debugging
Tune-9190-1784_Straight.abc 8293 ABC music file with the extracted tune(s)
Tune-9190-1784_Straight.ps 60766 PostScript
Tune-9190-1784_Straight.txt 8293 Plain-text file with the extracted tune(s)
Tune-9190-get.log 10299 Log file, useful mostly for debugging
Tune-91901-get.log 5360 Log file, useful mostly for debugging
Tune-91903-get.log 5539 Log file, useful mostly for debugging
Tune-91904-get.log 5111 Log file, useful mostly for debugging
These files should be available for 24 hours.