Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/JJC/MichaelDabney_12Minuets12Dances-1760-V1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9393-MichaelDabney_12Minuets12Dances-1760-V1.ps) >>/Users/jc/w/tmp/Tune-9393-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/JJC/MichaelDabney_12Minuets12Dances-1760-V1.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_93939.log 424138 Log file, useful mostly for debugging
Find_93939.log 1478 Log file, useful mostly for debugging
Tune-9393-MichaelDabney_12Minuets12Dances-1760-V1.abc 175 ABC music file with the extracted tune(s)
Tune-9393-MichaelDabney_12Minuets12Dances-1760-V1.ps 6 PostScript
Tune-9393-MichaelDabney_12Minuets12Dances-1760-V1.txt 175 Plain-text file with the extracted tune(s)
Tune-9393-get.log 9714 Log file, useful mostly for debugging
Tune-93930-get.log 3919 Log file, useful mostly for debugging
Tune-93931-get.log 1535 Log file, useful mostly for debugging
Tune-93932-get.log 5222 Log file, useful mostly for debugging
Tune-93933-get.log 3100 Log file, useful mostly for debugging
Tune-93935-get.log 1259 Log file, useful mostly for debugging
Tune-93937-get.log 15493 Log file, useful mostly for debugging
Tune-93938-24CountryDances_1813_Button_Whitaker.abc 172 ABC music file with the extracted tune(s)
Tune-93938-24CountryDances_1813_Button_Whitaker.pdf 2217 Portable Data Format
Tune-93938-24CountryDances_1813_Button_Whitaker.ps 6 PostScript
Tune-93938-24CountryDances_1813_Button_Whitaker.txt 172 Plain-text file with the extracted tune(s)
Tune-93938-get.log 5632 Log file, useful mostly for debugging
These files should be available for 24 hours.