pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7656-PatienceQuadrille_P2.ps) >>/Users/jc/w/tmp/Tune-7656-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/Contra/PatienceQuadrille_P2.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_76562.log 752719 Log file, useful mostly for debugging
Coll_76563.log 454336 Log file, useful mostly for debugging
Tune-7656-PatienceQuadrille_P2.abc 1679 ABC music file with the extracted tune(s)
Tune-7656-PatienceQuadrille_P2.ps 48069 PostScript
Tune-7656-PatienceQuadrille_P2.txt 1679 Plain-text file with the extracted tune(s)
Tune-7656-get.log 177303 Log file, useful mostly for debugging
Tune-76560-get.log 3545 Log file, useful mostly for debugging
Tune-76562-FuneralMarchOfAMarionette-001.svg 31953 Scalable Vector Graphics format
Tune-76562-FuneralMarchOfAMarionette.abc 778 ABC music file with the extracted tune(s)
Tune-76562-FuneralMarchOfAMarionette.txt 778 Plain-text file with the extracted tune(s)
Tune-76562-get.log 4350 Log file, useful mostly for debugging
Tune-76563-get.log 45134 Log file, useful mostly for debugging
Tune-76568-get.log 5137 Log file, useful mostly for debugging
These files should be available for 24 hours.