Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/1748/Glen2.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3882-Glen2.ps) >>/Users/jc/w/tmp/Tune-3882-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/1748/Glen2.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_3882.log 148652 Log file, useful mostly for debugging
Tune-3882-Glen2.abc 142 ABC music file with the extracted tune(s)
Tune-3882-Glen2.ps 6 PostScript
Tune-3882-Glen2.txt 142 Plain-text file with the extracted tune(s)
Tune-3882-get.log 8321 Log file, useful mostly for debugging
Tune-38821-JamesJohnson_ScotsMusicalMuseumV5-V2.abc 176 ABC music file with the extracted tune(s)
Tune-38821-JamesJohnson_ScotsMusicalMuseumV5-V2.ps 6 PostScript
Tune-38821-JamesJohnson_ScotsMusicalMuseumV5-V2.txt 176 Plain-text file with the extracted tune(s)
Tune-38821-get.log 14535 Log file, useful mostly for debugging
Tune-38822-Button_Whitaker_12ElegantNewDances_1810.abc 176 ABC music file with the extracted tune(s)
Tune-38822-Button_Whitaker_12ElegantNewDances_1810.ps 6 PostScript
Tune-38822-Button_Whitaker_12ElegantNewDances_1810.txt 176 Plain-text file with the extracted tune(s)
Tune-38822-get.log 4602 Log file, useful mostly for debugging
Tune-38823-get.log 4278 Log file, useful mostly for debugging
Tune-38824-get.log 4253 Log file, useful mostly for debugging
Tune-38825-get.log 14799 Log file, useful mostly for debugging
Tune-38826-get.log 4940 Log file, useful mostly for debugging
Tune-38827-get.log 12780 Log file, useful mostly for debugging
Tune-38828-get.log 9539 Log file, useful mostly for debugging
Tune-38829-get.log 10238 Log file, useful mostly for debugging
These files should be available for 24 hours.