pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-48677-Summer_Evening-A-16-4.ps) >>/Users/jc/w/tmp/Tune-48677-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/ONeills/waltz/Summer_Evening-A-16-4.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_48677.log 395326 Log file, useful mostly for debugging
Tune-48677-Summer_Evening-A-16-4.abc 497 ABC music file with the extracted tune(s)
Tune-48677-Summer_Evening-A-16-4.ps 35645 PostScript
Tune-48677-Summer_Evening-A-16-4.txt 497 Plain-text file with the extracted tune(s)
Tune-48677-get.log 4748 Log file, useful mostly for debugging
These files should be available for 24 hours.