Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/MM4/24CountryDances_1805_Thompson.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7932-24CountryDances_1805_Thompson.ps) >>/Users/jc/w/tmp/Tune-7932-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/MM4/24CountryDances_1805_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_79325.log 1253 Log file, useful mostly for debugging
Tune-7932-24CountryDances_1805_Thompson.abc 165 ABC music file with the extracted tune(s)
Tune-7932-24CountryDances_1805_Thompson.ps 6 PostScript
Tune-7932-24CountryDances_1805_Thompson.txt 165 Plain-text file with the extracted tune(s)
Tune-7932-get.log 4459 Log file, useful mostly for debugging
Tune-79320-Kerr_MM4-V2.abc 148 ABC music file with the extracted tune(s)
Tune-79320-Kerr_MM4-V2.pdf 2217 Portable Data Format
Tune-79320-Kerr_MM4-V2.ps 6 PostScript
Tune-79320-Kerr_MM4-V2.txt 148 Plain-text file with the extracted tune(s)
Tune-79320-get.log 4911 Log file, useful mostly for debugging
Tune-79321-get.log 4137 Log file, useful mostly for debugging
Tune-79327-CaledonianMusicalRepository.abc 163 ABC music file with the extracted tune(s)
Tune-79327-CaledonianMusicalRepository.pdf 2217 Portable Data Format
Tune-79327-CaledonianMusicalRepository.ps 6 PostScript
Tune-79327-CaledonianMusicalRepository.txt 163 Plain-text file with the extracted tune(s)
Tune-79327-get.log 5371 Log file, useful mostly for debugging
Tune-79329-get.log 1319 Log file, useful mostly for debugging
These files should be available for 24 hours.