Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/Rare_Small/AbrahamMackintosh.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9810-AbrahamMackintosh.ps) >>/Users/jc/w/tmp/Tune-9810-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Rare_Small/AbrahamMackintosh.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-9810-AbrahamMackintosh.abc 160 ABC music file with the extracted tune(s)
Tune-9810-AbrahamMackintosh.ps 6 PostScript
Tune-9810-AbrahamMackintosh.txt 160 Plain-text file with the extracted tune(s)
Tune-9810-get.log 4247 Log file, useful mostly for debugging
Tune-98100-get.log 29799 Log file, useful mostly for debugging
Tune-98101-get.log 5719 Log file, useful mostly for debugging
Tune-98102-get.log 4474 Log file, useful mostly for debugging
Tune-98103-get.log 5419 Log file, useful mostly for debugging
Tune-98104-get.log 8583 Log file, useful mostly for debugging
Tune-98107-get.log 4549 Log file, useful mostly for debugging
These files should be available for 24 hours.