pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8178-10522_Burbanks_Air.ps) >>/Users/jc/w/tmp/Tune-8178-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/EliasHowe/MusiciansCompanionP1/10522_Burbanks_Air.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_81787.log 155816 Log file, useful mostly for debugging
Tune-8178-10522_Burbanks_Air.abc 554 ABC music file with the extracted tune(s)
Tune-8178-10522_Burbanks_Air.ps 32857 PostScript
Tune-8178-10522_Burbanks_Air.txt 554 Plain-text file with the extracted tune(s)
Tune-8178-get.log 10099 Log file, useful mostly for debugging
Tune-81780-get.log 9213 Log file, useful mostly for debugging
Tune-81781-get.log 7416 Log file, useful mostly for debugging
Tune-81783-get.log 3514 Log file, useful mostly for debugging
Tune-81784-get.log 3112 Log file, useful mostly for debugging
Tune-81788-get.log 3051 Log file, useful mostly for debugging
These files should be available for 24 hours.