Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/DftY/Thompson.abc/1765"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7798-1765.ps) >>/Users/jc/w/tmp/Tune-7798-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/DftY/Thompson.abc/1765

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.65 512x512 PNG]
filesizedescription
Tune-7798-1765.abc 150 ABC music file with the extracted tune(s)
Tune-7798-1765.ps 6 PostScript
Tune-7798-1765.txt 150 Plain-text file with the extracted tune(s)
Tune-7798-get.log 3948 Log file, useful mostly for debugging
Tune-77981-get.log 1398 Log file, useful mostly for debugging
Tune-77985-11032_Broom_of_Cowdenknows.abc 570 ABC music file with the extracted tune(s)
Tune-77985-11032_Broom_of_Cowdenknows.pdf 11905 Portable Data Format
Tune-77985-11032_Broom_of_Cowdenknows.ps 33385 PostScript
Tune-77985-11032_Broom_of_Cowdenknows.txt 570 Plain-text file with the extracted tune(s)
Tune-77985-get.log 7143 Log file, useful mostly for debugging
Tune-77989-10012_Roys_Wife_of_Aldivalloch-001.svg 17134 Scalable Vector Graphics format
Tune-77989-10012_Roys_Wife_of_Aldivalloch.abc 668 ABC music file with the extracted tune(s)
Tune-77989-10012_Roys_Wife_of_Aldivalloch.txt 668 Plain-text file with the extracted tune(s)
Tune-77989-get.log 4504 Log file, useful mostly for debugging
These files should be available for 24 hours.