Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/Whetherly21/Kohlers1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8607-Kohlers1.ps) >>/Users/jc/w/tmp/Tune-8607-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Whetherly21/Kohlers1.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Find_86074.log 1738 Log file, useful mostly for debugging
Tune-8607-Kohlers1.abc 152 ABC music file with the extracted tune(s)
Tune-8607-Kohlers1.ps 6 PostScript
Tune-8607-Kohlers1.txt 152 Plain-text file with the extracted tune(s)
Tune-8607-get.log 8140 Log file, useful mostly for debugging
Tune-86070-MMM2.abc 143 ABC music file with the extracted tune(s)
Tune-86070-MMM2.ps 6 PostScript
Tune-86070-MMM2.txt 143 Plain-text file with the extracted tune(s)
Tune-86070-get.log 5280 Log file, useful mostly for debugging
Tune-86071-get.log 1433 Log file, useful mostly for debugging
Tune-86073-get.log 4373 Log file, useful mostly for debugging
Tune-86074-get.log 4398 Log file, useful mostly for debugging
Tune-86075-get.log 9728 Log file, useful mostly for debugging
Tune-86078-get.log 4154 Log file, useful mostly for debugging
Tune-86079-get.log 4432 Log file, useful mostly for debugging
These files should be available for 24 hours.