Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/X/MichaelDabney_12Minuets12Dances-1760-V2.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4953-MichaelDabney_12Minuets12Dances-1760-V2.ps) >>/Users/jc/w/tmp/Tune-4953-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/X/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
Coll_4953.log 277304 Log file, useful mostly for debugging
Coll_49532.log 266064 Log file, useful mostly for debugging
Coll_49538.log 659469 Log file, useful mostly for debugging
Tune-4953-MichaelDabney_12Minuets12Dances-1760-V2.abc 173 ABC music file with the extracted tune(s)
Tune-4953-MichaelDabney_12Minuets12Dances-1760-V2.ps 6 PostScript
Tune-4953-MichaelDabney_12Minuets12Dances-1760-V2.txt 173 Plain-text file with the extracted tune(s)
Tune-4953-get.log 4657 Log file, useful mostly for debugging
Tune-49530-get.log 1268 Log file, useful mostly for debugging
Tune-49536-get.log 1315 Log file, useful mostly for debugging
Tune-49539-endo.abc 153 ABC music file with the extracted tune(s)
Tune-49539-endo.ps 6 PostScript
Tune-49539-endo.txt 153 Plain-text file with the extracted tune(s)
Tune-49539-get.log 4060 Log file, useful mostly for debugging
These files should be available for 24 hours.