pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7692-1791_Thompson.ps) >>/Users/jc/w/tmp/Tune-7692-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/dfty/1791_Thompson.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_76927.log 266066 Log file, useful mostly for debugging
Form_76927.log 823 Log file, useful mostly for debugging
Form_76929.log 964 Log file, useful mostly for debugging
Tune-7692-1791_Thompson.abc 16893 ABC music file with the extracted tune(s)
Tune-7692-1791_Thompson.ps 120604 PostScript
Tune-7692-1791_Thompson.txt 16893 Plain-text file with the extracted tune(s)
Tune-7692-get.log 17164 Log file, useful mostly for debugging
Tune-76921-get.log 10610 Log file, useful mostly for debugging
Tune-76925-get.log 183030 Log file, useful mostly for debugging
Tune-76929-8049_Lady_Coventrys_Delight.abc 415 ABC music file with the extracted tune(s)
Tune-76929-8049_Lady_Coventrys_Delight.pdf 15454 Portable Data Format
Tune-76929-8049_Lady_Coventrys_Delight.ps 34461 PostScript
Tune-76929-8049_Lady_Coventrys_Delight.txt 415 Plain-text file with the extracted tune(s)
Tune-76929-get.log 5867 Log file, useful mostly for debugging
These files should be available for 24 hours.