pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-79449-84_RosemontQuadrille_DG.ps) >>/Users/jc/w/tmp/Tune-79449-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/HillCountryTunes/84_RosemontQuadrille_DG.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_79449.log 361608 Log file, useful mostly for debugging
Tune-79449-84_RosemontQuadrille_DG.abc 1292 ABC music file with the extracted tune(s)
Tune-79449-84_RosemontQuadrille_DG.ps 35361 PostScript
Tune-79449-84_RosemontQuadrille_DG.txt 1292 Plain-text file with the extracted tune(s)
Tune-79449-get.log 10000 Log file, useful mostly for debugging
These files should be available for 24 hours.