Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/waltz/MichaelDabney_12Minuets12Dances-1760-V1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8945-MichaelDabney_12Minuets12Dances-1760-V1.ps) >>/Users/jc/w/tmp/Tune-8945-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/waltz/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
Tune-8945-MichaelDabney_12Minuets12Dances-1760-V1.abc 177 ABC music file with the extracted tune(s)
Tune-8945-MichaelDabney_12Minuets12Dances-1760-V1.ps 6 PostScript
Tune-8945-MichaelDabney_12Minuets12Dances-1760-V1.txt 177 Plain-text file with the extracted tune(s)
Tune-8945-get.log 4677 Log file, useful mostly for debugging
Tune-89451-EliasHowe_MusiciansCompanionP3-1844-V2.abc 175 ABC music file with the extracted tune(s)
Tune-89451-EliasHowe_MusiciansCompanionP3-1844-V2.pdf 2217 Portable Data Format
Tune-89451-EliasHowe_MusiciansCompanionP3-1844-V2.ps 6 PostScript
Tune-89451-EliasHowe_MusiciansCompanionP3-1844-V2.txt 175 Plain-text file with the extracted tune(s)
Tune-89451-get.log 5698 Log file, useful mostly for debugging
Tune-89452-get.log 4014 Log file, useful mostly for debugging
Tune-89456-get.log 4367 Log file, useful mostly for debugging
Tune-89458-get.log 4432 Log file, useful mostly for debugging
Tune-89459-get.log 4246 Log file, useful mostly for debugging
These files should be available for 24 hours.