pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7237-Hambo1.ps) >>/Users/jc/w/tmp/Tune-7237-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/scand/Hambo1.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_72371.log 1271536 Log file, useful mostly for debugging
Coll_72379.log 1240161 Log file, useful mostly for debugging
Tune-7237-Hambo1.abc 1768 ABC music file with the extracted tune(s)
Tune-7237-Hambo1.ps 55207 PostScript
Tune-7237-Hambo1.txt 1768 Plain-text file with the extracted tune(s)
Tune-7237-get.log 8524 Log file, useful mostly for debugging
Tune-72371-get.log 3991 Log file, useful mostly for debugging
Tune-72372-get.log 5142 Log file, useful mostly for debugging
Tune-72373-get.log 5465 Log file, useful mostly for debugging
Tune-72375-get.log 1271 Log file, useful mostly for debugging
Tune-72377-get.log 5610 Log file, useful mostly for debugging
These files should be available for 24 hours.