pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-72720-313_Madam_Cassy.ps) >>/Users/jc/w/tmp/Tune-72720-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/AndersonsBudgetV1/313_Madam_Cassy.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Form_72720.log 927 Log file, useful mostly for debugging
Tune-72720-313_Madam_Cassy.abc 637 ABC music file with the extracted tune(s)
Tune-72720-313_Madam_Cassy.ps 34750 PostScript
Tune-72720-313_Madam_Cassy.txt 637 Plain-text file with the extracted tune(s)
Tune-72720-get.log 4631 Log file, useful mostly for debugging
These files should be available for 24 hours.