pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2620-10532_Scotch_Air.ps) >>/Users/jc/w/tmp/Tune-2620-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/EliasHowe/MusiciansCompanionP1/10532_Scotch_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
Tune-2620-10532_Scotch_Air.abc 640 ABC music file with the extracted tune(s)
Tune-2620-10532_Scotch_Air.ps 34758 PostScript
Tune-2620-10532_Scotch_Air.txt 640 Plain-text file with the extracted tune(s)
Tune-2620-get.log 6210 Log file, useful mostly for debugging
Tune-26201-get.log 4450 Log file, useful mostly for debugging
Tune-26203-get.log 4907 Log file, useful mostly for debugging
These files should be available for 24 hours.