pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-89769-064_Cotillon.ps) >>/Users/jc/w/tmp/Tune-89769-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Stewart/SCAJMR/064_Cotillon.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Coll_89769.log 261851 Log file, useful mostly for debugging
Tune-89769-064_Cotillon.abc 532 ABC music file with the extracted tune(s)
Tune-89769-064_Cotillon.ps 34061 PostScript
Tune-89769-064_Cotillon.txt 532 Plain-text file with the extracted tune(s)
Tune-89769-get.log 12459 Log file, useful mostly for debugging
These files should be available for 24 hours.