Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/sets/CMCIT.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6916-CMCIT.ps) >>/Users/jc/w/tmp/Tune-6916-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/sets/CMCIT.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-6916-CMCIT.abc 142 ABC music file with the extracted tune(s)
Tune-6916-CMCIT.ps 6 PostScript
Tune-6916-CMCIT.txt 142 Plain-text file with the extracted tune(s)
Tune-6916-get.log 9570 Log file, useful mostly for debugging
Tune-69160-CSR1-abc2.abc 157 ABC music file with the extracted tune(s)
Tune-69160-CSR1-abc2.txt 157 Plain-text file with the extracted tune(s)
Tune-69160-get.log 3232 Log file, useful mostly for debugging
Tune-69161-JohnFrench.abc 145 ABC music file with the extracted tune(s)
Tune-69161-JohnFrench.ps 6 PostScript
Tune-69161-JohnFrench.txt 145 Plain-text file with the extracted tune(s)
Tune-69161-get.log 3977 Log file, useful mostly for debugging
Tune-69163-24CountryDances_1780_Thompson.abc 165 ABC music file with the extracted tune(s)
Tune-69163-24CountryDances_1780_Thompson.ps 6 PostScript
Tune-69163-24CountryDances_1780_Thompson.txt 165 Plain-text file with the extracted tune(s)
Tune-69163-get.log 11212 Log file, useful mostly for debugging
Tune-69165-Nelson.abc 159 ABC music file with the extracted tune(s)
Tune-69165-Nelson.pdf 2217 Portable Data Format
Tune-69165-Nelson.ps 6 PostScript
Tune-69165-Nelson.txt 159 Plain-text file with the extracted tune(s)
Tune-69165-get.log 4860 Log file, useful mostly for debugging
Tune-69166-Hamilton_HUTB2-1846-V1.abc 161 ABC music file with the extracted tune(s)
Tune-69166-Hamilton_HUTB2-1846-V1.ps 6 PostScript
Tune-69166-Hamilton_HUTB2-1846-V1.txt 161 Plain-text file with the extracted tune(s)
Tune-69166-get.log 9008 Log file, useful mostly for debugging
These files should be available for 24 hours.