pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3756-x15.ps) >>/Users/jc/w/tmp/Tune-3756-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/Contra/x15.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_37560.log 260445 Log file, useful mostly for debugging
Form_3756.log 846 Log file, useful mostly for debugging
Form_37562.log 940 Log file, useful mostly for debugging
Form_37563.log 863 Log file, useful mostly for debugging
Form_37566.log 902 Log file, useful mostly for debugging
Tune-3756-get.log 3713 Log file, useful mostly for debugging
Tune-3756-x15.abc 813 ABC music file with the extracted tune(s)
Tune-3756-x15.ps 35914 PostScript
Tune-3756-x15.txt 813 Plain-text file with the extracted tune(s)
Tune-37564-get.log 10137 Log file, useful mostly for debugging
Tune-37566-get.log 5830 Log file, useful mostly for debugging
Tune-37567-get.log 44390 Log file, useful mostly for debugging
These files should be available for 24 hours.