Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/Gow/CSR4-abc1.abc/CR1-abc2.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9692-CR1-abc2.ps) >>/Users/jc/w/tmp/Tune-9692-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Gow/CSR4-abc1.abc/CR1-abc2.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_96921.log 212021 Log file, useful mostly for debugging
Find_96924.log 1827 Log file, useful mostly for debugging
Tune-9692-CR1-abc2.abc 158 ABC music file with the extracted tune(s)
Tune-9692-CR1-abc2.ps 6 PostScript
Tune-9692-CR1-abc2.txt 158 Plain-text file with the extracted tune(s)
Tune-9692-get.log 4102 Log file, useful mostly for debugging
Tune-96920-get.log 3494 Log file, useful mostly for debugging
Tune-96923-get.log 4054 Log file, useful mostly for debugging
Tune-96924-get.log 4058 Log file, useful mostly for debugging
Tune-96927-24CountryDances_1805_Preston.abc 178 ABC music file with the extracted tune(s)
Tune-96927-24CountryDances_1805_Preston.pdf 2217 Portable Data Format
Tune-96927-24CountryDances_1805_Preston.ps 6 PostScript
Tune-96927-24CountryDances_1805_Preston.txt 178 Plain-text file with the extracted tune(s)
Tune-96927-get.log 9843 Log file, useful mostly for debugging
Tune-96928-get.log 4959 Log file, useful mostly for debugging
These files should be available for 24 hours.