Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/Glen2/ThomasBraysCountryDances1699.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-762-ThomasBraysCountryDances1699.ps) >>/Users/jc/w/tmp/Tune-762-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Glen2/ThomasBraysCountryDances1699.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_76213.log 139055 Log file, useful mostly for debugging
Coll_76227.log 355988 Log file, useful mostly for debugging
Coll_76242.log 125616 Log file, useful mostly for debugging
Coll_76268.log 129453 Log file, useful mostly for debugging
Coll_76283.log 260449 Log file, useful mostly for debugging
Coll_76297.log 132656 Log file, useful mostly for debugging
Form_76267.abc 1901 ABC music file with the extracted tune(s)
Form_76267.log 1014 Log file, useful mostly for debugging
Form_76267_001.svg 17277 Scalable Vector Graphics format
Form_76267_002.svg 7624 Scalable Vector Graphics format
Sess-76257.log 4963 Log file, useful mostly for debugging
Tune-762-ThomasBraysCountryDances1699.abc 166 ABC music file with the extracted tune(s)
Tune-762-ThomasBraysCountryDances1699.ps 6 PostScript
Tune-762-ThomasBraysCountryDances1699.txt 166 Plain-text file with the extracted tune(s)
Tune-762-get.log 8670 Log file, useful mostly for debugging
Tune-76231-get.log 1275 Log file, useful mostly for debugging
Tune-76282-get.log 1260 Log file, useful mostly for debugging
These files should be available for 24 hours.