Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/1765/OldEnglishCountryDances.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6090-OldEnglishCountryDances.ps) >>/Users/jc/w/tmp/Tune-6090-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/1765/OldEnglishCountryDances.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-6090-10081_Cawdor_Fair.abc 478 ABC music file with the extracted tune(s)
Tune-6090-10081_Cawdor_Fair.ps 34279 PostScript
Tune-6090-10081_Cawdor_Fair.txt 478 Plain-text file with the extracted tune(s)
Tune-6090-OldEnglishCountryDances.abc 160 ABC music file with the extracted tune(s)
Tune-6090-OldEnglishCountryDances.ps 6 PostScript
Tune-6090-OldEnglishCountryDances.txt 160 Plain-text file with the extracted tune(s)
Tune-6090-get.log 8860 Log file, useful mostly for debugging
Tune-60900-get.log 5621 Log file, useful mostly for debugging
Tune-60907-get.log 5395 Log file, useful mostly for debugging
Tune-60908-all.abc 172 ABC music file with the extracted tune(s)
Tune-60908-all.ps 6 PostScript
Tune-60908-all.txt 172 Plain-text file with the extracted tune(s)
Tune-60908-get.log 9374 Log file, useful mostly for debugging
These files should be available for 24 hours.