pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-29493-JohnAndersonsReel.ps) >>/Users/jc/w/tmp/Tune-29493-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/Scotland/JohnAndersonsReel.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_29493.log 451526 Log file, useful mostly for debugging
Tune-29493-JohnAndersonsReel.abc 1925 ABC music file with the extracted tune(s)
Tune-29493-JohnAndersonsReel.ps 44400 PostScript
Tune-29493-JohnAndersonsReel.txt 1925 Plain-text file with the extracted tune(s)
Tune-29493-get.log 5024 Log file, useful mostly for debugging
These files should be available for 24 hours.