Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/Book16/24CountryDances_1767_Thompson.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6099-24CountryDances_1767_Thompson.ps) >>/Users/jc/w/tmp/Tune-6099-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Book16/24CountryDances_1767_Thompson.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Find_60992.log 1494 Log file, useful mostly for debugging
Tune-6099-24CountryDances_1767_Thompson.abc 168 ABC music file with the extracted tune(s)
Tune-6099-24CountryDances_1767_Thompson.ps 6 PostScript
Tune-6099-24CountryDances_1767_Thompson.txt 168 Plain-text file with the extracted tune(s)
Tune-6099-get.log 4479 Log file, useful mostly for debugging
Tune-60991-get.log 9477 Log file, useful mostly for debugging
Tune-60992-24CountryDances_1793_Preston.abc 167 ABC music file with the extracted tune(s)
Tune-60992-24CountryDances_1793_Preston.pdf 2217 Portable Data Format
Tune-60992-24CountryDances_1793_Preston.ps 6 PostScript
Tune-60992-24CountryDances_1793_Preston.txt 167 Plain-text file with the extracted tune(s)
Tune-60992-get.log 9654 Log file, useful mostly for debugging
Tune-60993-get.log 7154 Log file, useful mostly for debugging
Tune-60994-get.log 4059 Log file, useful mostly for debugging
Tune-60995-24CountryDances_1801_Preston.abc 167 ABC music file with the extracted tune(s)
Tune-60995-24CountryDances_1801_Preston.ps 6 PostScript
Tune-60995-24CountryDances_1801_Preston.txt 167 Plain-text file with the extracted tune(s)
Tune-60995-get.log 4383 Log file, useful mostly for debugging
Tune-60996-get.log 3979 Log file, useful mostly for debugging
Tune-60998-get.log 5534 Log file, useful mostly for debugging
Tune-60999-get.log 9501 Log file, useful mostly for debugging
These files should be available for 24 hours.