Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/hdr/BonAccordCollection.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7780-BonAccordCollection.ps) >>/Users/jc/w/tmp/Tune-7780-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/hdr/BonAccordCollection.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_77807.log 20567 Log file, useful mostly for debugging
Tune-7780-BonAccordCollection.abc 155 ABC music file with the extracted tune(s)
Tune-7780-BonAccordCollection.ps 6 PostScript
Tune-7780-BonAccordCollection.txt 155 Plain-text file with the extracted tune(s)
Tune-7780-get.log 4251 Log file, useful mostly for debugging
Tune-77800-Gow-CSR4-abc2.abc 149 ABC music file with the extracted tune(s)
Tune-77800-Gow-CSR4-abc2.txt 149 Plain-text file with the extracted tune(s)
Tune-77800-get.log 53235 Log file, useful mostly for debugging
Tune-77802-get.log 5778 Log file, useful mostly for debugging
Tune-77803-get.log 5355 Log file, useful mostly for debugging
Tune-77808-get.log 3238 Log file, useful mostly for debugging
These files should be available for 24 hours.