Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/Gow/CR-abc2.abc/CSR2-abc2.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7844-CSR2-abc2.ps) >>/Users/jc/w/tmp/Tune-7844-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Gow/CR-abc2.abc/CSR2-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
Tune-7844-CSR2-abc2.abc 157 ABC music file with the extracted tune(s)
Tune-7844-CSR2-abc2.ps 6 PostScript
Tune-7844-CSR2-abc2.txt 157 Plain-text file with the extracted tune(s)
Tune-7844-get.log 7522 Log file, useful mostly for debugging
Tune-78440-get.log 4492 Log file, useful mostly for debugging
Tune-78441-get.log 84550 Log file, useful mostly for debugging
Tune-78443-get.log 9040 Log file, useful mostly for debugging
Tune-78444-get.log 8258 Log file, useful mostly for debugging
Tune-78445-Button_Whitaker_SelectionOfDancesReelsAndWaltzes_2.abc 187 ABC music file with the extracted tune(s)
Tune-78445-Button_Whitaker_SelectionOfDancesReelsAndWaltzes_2.pdf 2217 Portable Data Format
Tune-78445-Button_Whitaker_SelectionOfDancesReelsAndWaltzes_2.ps 6 PostScript
Tune-78445-Button_Whitaker_SelectionOfDancesReelsAndWaltzes_2.txt 187 Plain-text file with the extracted tune(s)
Tune-78445-get.log 6042 Log file, useful mostly for debugging
Tune-78446-get.log 5466 Log file, useful mostly for debugging
Tune-78447-get.log 13381 Log file, useful mostly for debugging
Tune-78448-get.log 6552 Log file, useful mostly for debugging
These files should be available for 24 hours.