Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/Gow/CSR3-abc2.pdf/CSR4-abc1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6614-CSR4-abc1.ps) >>/Users/jc/w/tmp/Tune-6614-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Gow/CSR3-abc2.pdf/CSR4-abc1.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_66149.log 146735 Log file, useful mostly for debugging
Tune-6614-CSR4-abc1.abc 159 ABC music file with the extracted tune(s)
Tune-6614-CSR4-abc1.ps 6 PostScript
Tune-6614-CSR4-abc1.txt 159 Plain-text file with the extracted tune(s)
Tune-6614-get.log 4123 Log file, useful mostly for debugging
Tune-66140-get.log 3906 Log file, useful mostly for debugging
Tune-66141-get.log 11243 Log file, useful mostly for debugging
Tune-66144-Hamilton_HUTB1-1844-V1.abc 175 ABC music file with the extracted tune(s)
Tune-66144-Hamilton_HUTB1-1844-V1.pdf 2217 Portable Data Format
Tune-66144-Hamilton_HUTB1-1844-V1.ps 6 PostScript
Tune-66144-Hamilton_HUTB1-1844-V1.txt 175 Plain-text file with the extracted tune(s)
Tune-66144-get.log 8476 Log file, useful mostly for debugging
Tune-66145-get.log 6002 Log file, useful mostly for debugging
These files should be available for 24 hours.