pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9220-Book_Tango.ps) >>/Users/jc/w/tmp/Tune-9220-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/scand/Book_Tango.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_9220.log 250611 Log file, useful mostly for debugging
Form_92204.log 881 Log file, useful mostly for debugging
Form_92208.log 812 Log file, useful mostly for debugging
Tune-9220-Book_Tango.abc 2830 ABC music file with the extracted tune(s)
Tune-9220-Book_Tango.ps 58570 PostScript
Tune-9220-Book_Tango.txt 2830 Plain-text file with the extracted tune(s)
Tune-9220-get.log 4890 Log file, useful mostly for debugging
Tune-92200-get.log 4762 Log file, useful mostly for debugging
Tune-92201-get.log 1498 Log file, useful mostly for debugging
Tune-92202-get.log 8686 Log file, useful mostly for debugging
Tune-92203-get.log 3935 Log file, useful mostly for debugging
Tune-92206-get.log 5195 Log file, useful mostly for debugging
Tune-92209-get.log 171913 Log file, useful mostly for debugging
These files should be available for 24 hours.