pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-94182-070_Allemande.ps) >>/Users/jc/w/tmp/Tune-94182-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Stewart/SCAJMR/070_Allemande.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.65 512x512 PNG]
filesizedescription
Tune-94182-070_Allemande.abc 564 ABC music file with the extracted tune(s)
Tune-94182-070_Allemande.ps 34990 PostScript
Tune-94182-070_Allemande.txt 564 Plain-text file with the extracted tune(s)
Tune-94182-get.log 4541 Log file, useful mostly for debugging
These files should be available for 24 hours.