Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/1796/endo.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3246-endo.ps) >>/Users/jc/w/tmp/Tune-3246-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/1796/endo.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-3246-endo.abc 141 ABC music file with the extracted tune(s)
Tune-3246-endo.ps 6 PostScript
Tune-3246-endo.txt 141 Plain-text file with the extracted tune(s)
Tune-3246-get.log 3940 Log file, useful mostly for debugging
Tune-32460-get.log 4233 Log file, useful mostly for debugging
Tune-32461-get.log 193383 Log file, useful mostly for debugging
Tune-32462-101_Step_Stately.abc 228 ABC music file with the extracted tune(s)
Tune-32462-101_Step_Stately.pdf 10036 Portable Data Format
Tune-32462-101_Step_Stately.ps 32850 PostScript
Tune-32462-101_Step_Stately.txt 228 Plain-text file with the extracted tune(s)
Tune-32462-get.log 5466 Log file, useful mostly for debugging
Tune-32468-get.log 3942 Log file, useful mostly for debugging
These files should be available for 24 hours.