pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9699-PatienceQuadrille_P1.ps) >>/Users/jc/w/tmp/Tune-9699-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/Contra/PatienceQuadrille_P1.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_96991.log 766592 Log file, useful mostly for debugging
Tune-9699-PatienceQuadrille_P1.abc 1192 ABC music file with the extracted tune(s)
Tune-9699-PatienceQuadrille_P1.ps 42495 PostScript
Tune-9699-PatienceQuadrille_P1.txt 1192 Plain-text file with the extracted tune(s)
Tune-9699-get.log 4606 Log file, useful mostly for debugging
Tune-96991-get.log 15676 Log file, useful mostly for debugging
Tune-96996-get.log 16425 Log file, useful mostly for debugging
These files should be available for 24 hours.