pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8787-BelleOfBostonReel.ps) >>/Users/jc/w/tmp/Tune-8787-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/ryan-cole/Tunes/BelleOfBostonReel.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_87872.log 164916 Log file, useful mostly for debugging
Coll_87879.log 167517 Log file, useful mostly for debugging
Tune-8787-BelleOfBostonReel.abc 644 ABC music file with the extracted tune(s)
Tune-8787-BelleOfBostonReel.ps 38480 PostScript
Tune-8787-BelleOfBostonReel.txt 644 Plain-text file with the extracted tune(s)
Tune-8787-get.log 4674 Log file, useful mostly for debugging
Tune-87873-get.log 5203 Log file, useful mostly for debugging
Tune-87874-get.log 5367 Log file, useful mostly for debugging
Tune-87875-get.log 4764 Log file, useful mostly for debugging
Tune-87877-get.log 4521 Log file, useful mostly for debugging
Tune-87878-get.log 1491 Log file, useful mostly for debugging
These files should be available for 24 hours.