Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/HUTB1/Remick.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-5787-Remick.ps) >>/Users/jc/w/tmp/Tune-5787-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/HUTB1/Remick.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_57873.log 104332 Log file, useful mostly for debugging
Find_57872.log 1662 Log file, useful mostly for debugging
Form_57878.log 830 Log file, useful mostly for debugging
Tune-5787-Remick.abc 144 ABC music file with the extracted tune(s)
Tune-5787-Remick.ps 6 PostScript
Tune-5787-Remick.txt 144 Plain-text file with the extracted tune(s)
Tune-5787-get.log 3984 Log file, useful mostly for debugging
Tune-57870-get.log 5639 Log file, useful mostly for debugging
Tune-57871-get.log 5816 Log file, useful mostly for debugging
Tune-57872-get.log 8037 Log file, useful mostly for debugging
Tune-57875-get.log 4106 Log file, useful mostly for debugging
Tune-57876-get.log 11053 Log file, useful mostly for debugging
Tune-57877-get.log 1406 Log file, useful mostly for debugging
Tune-57878-get.log 1359 Log file, useful mostly for debugging
Tune-57879-get.log 9155 Log file, useful mostly for debugging
These files should be available for 24 hours.