Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/ScotsMusicalMuseumV5/LondonMagazine.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8686-LondonMagazine.ps) >>/Users/jc/w/tmp/Tune-8686-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/ScotsMusicalMuseumV5/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_86861.log 155054 Log file, useful mostly for debugging
Form_86862.log 946 Log file, useful mostly for debugging
Form_86868.log 1689 Log file, useful mostly for debugging
Tune-8686-LondonMagazine.abc 167 ABC music file with the extracted tune(s)
Tune-8686-LondonMagazine.ps 6 PostScript
Tune-8686-LondonMagazine.txt 167 Plain-text file with the extracted tune(s)
Tune-8686-get.log 8251 Log file, useful mostly for debugging
Tune-86860-24CountryDances_1810_Button_Whitaker.abc 181 ABC music file with the extracted tune(s)
Tune-86860-24CountryDances_1810_Button_Whitaker.ps 6 PostScript
Tune-86860-24CountryDances_1810_Button_Whitaker.txt 181 Plain-text file with the extracted tune(s)
Tune-86860-Gow-CSR-abc2.abc 155 ABC music file with the extracted tune(s)
Tune-86860-Gow-CSR-abc2.txt 155 Plain-text file with the extracted tune(s)
Tune-86860-get.log 13644 Log file, useful mostly for debugging
Tune-86862-get.log 5757 Log file, useful mostly for debugging
Tune-86865-get.log 5824 Log file, useful mostly for debugging
Tune-86867-GoldenBookOfFavoriteSongs1.abc 163 ABC music file with the extracted tune(s)
Tune-86867-GoldenBookOfFavoriteSongs1.pdf 2217 Portable Data Format
Tune-86867-GoldenBookOfFavoriteSongs1.ps 6 PostScript
Tune-86867-GoldenBookOfFavoriteSongs1.txt 163 Plain-text file with the extracted tune(s)
Tune-86867-get.log 5342 Log file, useful mostly for debugging
These files should be available for 24 hours.