Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/1765/Gallini_NewColl44Cot1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9548-Gallini_NewColl44Cot1.ps) >>/Users/jc/w/tmp/Tune-9548-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/1765/Gallini_NewColl44Cot1.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-9548-Gallini_NewColl44Cot1.abc 158 ABC music file with the extracted tune(s)
Tune-9548-Gallini_NewColl44Cot1.ps 6 PostScript
Tune-9548-Gallini_NewColl44Cot1.txt 158 Plain-text file with the extracted tune(s)
Tune-9548-get.log 4291 Log file, useful mostly for debugging
Tune-95481-Bloody_Drunken_Peeler.abc 395 ABC music file with the extracted tune(s)
Tune-95481-Bloody_Drunken_Peeler.gif 0 Graphics Interchange Format, the proprietary scan-line picture format
Tune-95481-Bloody_Drunken_Peeler.ps 34083 PostScript
Tune-95481-Bloody_Drunken_Peeler.txt 395 Plain-text file with the extracted tune(s)
Tune-95481-get.log 5691 Log file, useful mostly for debugging
Tune-95484-get.log 1459 Log file, useful mostly for debugging
Tune-95489-get.log 1402 Log file, useful mostly for debugging
These files should be available for 24 hours.