pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-86679-SCAJMR_1784-V2.ps) >>/Users/jc/w/tmp/Tune-86679-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Stewart/SCAJMR_1784-V2.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-86679-10832_Green_Grows_the_Rashes.abc 504 ABC music file with the extracted tune(s)
Tune-86679-10832_Green_Grows_the_Rashes.ps 34325 PostScript
Tune-86679-10832_Green_Grows_the_Rashes.txt 504 Plain-text file with the extracted tune(s)
Tune-86679-SCAJMR_1784-V2.abc 71227 ABC music file with the extracted tune(s)
Tune-86679-SCAJMR_1784-V2.ps 598182 PostScript
Tune-86679-SCAJMR_1784-V2.txt 71227 Plain-text file with the extracted tune(s)
Tune-86679-get.log 81505 Log file, useful mostly for debugging
These files should be available for 24 hours.