Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/NS_Anniv50/MichaelDabney_12Minuets12Dances-1760-V2.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7156-MichaelDabney_12Minuets12Dances-1760-V2.ps) >>/Users/jc/w/tmp/Tune-7156-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/NS_Anniv50/MichaelDabney_12Minuets12Dances-1760-V2.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-7156-MichaelDabney_12Minuets12Dances-1760-V2.abc 182 ABC music file with the extracted tune(s)
Tune-7156-MichaelDabney_12Minuets12Dances-1760-V2.ps 6 PostScript
Tune-7156-MichaelDabney_12Minuets12Dances-1760-V2.txt 182 Plain-text file with the extracted tune(s)
Tune-7156-get.log 7833 Log file, useful mostly for debugging
Tune-71563-get.log 5555 Log file, useful mostly for debugging
Tune-71564-get.log 3394 Log file, useful mostly for debugging
Tune-71565-get.log 9681 Log file, useful mostly for debugging
Tune-71566-get.log 5455 Log file, useful mostly for debugging
Tune-71568-get.log 5437 Log file, useful mostly for debugging
Tune-71569-1812_Wilson_Harmony_FourNewCountryDances.abc 177 ABC music file with the extracted tune(s)
Tune-71569-1812_Wilson_Harmony_FourNewCountryDances.txt 177 Plain-text file with the extracted tune(s)
Tune-71569-get.log 3724 Log file, useful mostly for debugging
These files should be available for 24 hours.