pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-94615-010_American_Dances.ps) >>/Users/jc/w/tmp/Tune-94615-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/BotCDaSS/010_American_Dances.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Tune-94615-010_American_Dances.abc 190 ABC music file with the extracted tune(s)
Tune-94615-010_American_Dances.ps 30691 PostScript
Tune-94615-010_American_Dances.txt 190 Plain-text file with the extracted tune(s)
Tune-94615-CSRHW-abc1.abc 148 ABC music file with the extracted tune(s)
Tune-94615-CSRHW-abc1.ps 6 PostScript
Tune-94615-CSRHW-abc1.txt 148 Plain-text file with the extracted tune(s)
Tune-94615-get.log 8772 Log file, useful mostly for debugging
These files should be available for 24 hours.