Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/slide/LondonMagazine.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3482-LondonMagazine.ps) >>/Users/jc/w/tmp/Tune-3482-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/slide/LondonMagazine.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_34827.log 123967 Log file, useful mostly for debugging
Tune-3482-LondonMagazine.abc 152 ABC music file with the extracted tune(s)
Tune-3482-LondonMagazine.ps 6 PostScript
Tune-3482-LondonMagazine.txt 152 Plain-text file with the extracted tune(s)
Tune-3482-get.log 4156 Log file, useful mostly for debugging
Tune-34825-get.log 5496 Log file, useful mostly for debugging
Tune-34826-CDSS_CDoT.abc 146 ABC music file with the extracted tune(s)
Tune-34826-CDSS_CDoT.ps 6 PostScript
Tune-34826-CDSS_CDoT.txt 146 Plain-text file with the extracted tune(s)
Tune-34826-get.log 3974 Log file, useful mostly for debugging
These files should be available for 24 hours.