Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/Book16/Thompson_V3_1766-1772_FTM.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6197-Thompson_V3_1766-1772_FTM.ps) >>/Users/jc/w/tmp/Tune-6197-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Book16/Thompson_V3_1766-1772_FTM.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_61979.log 121775 Log file, useful mostly for debugging
Tune-6197-Thompson_V3_1766-1772_FTM.abc 164 ABC music file with the extracted tune(s)
Tune-6197-Thompson_V3_1766-1772_FTM.ps 6 PostScript
Tune-6197-Thompson_V3_1766-1772_FTM.txt 164 Plain-text file with the extracted tune(s)
Tune-6197-get.log 9562 Log file, useful mostly for debugging
Tune-61975-get.log 9456 Log file, useful mostly for debugging
Tune-61978-Danny_Boy-G,C,D-16-10w.abc 2208 ABC music file with the extracted tune(s)
Tune-61978-Danny_Boy-G,C,D-16-10w.txt 2208 Plain-text file with the extracted tune(s)
Tune-61978-get.log 4694 Log file, useful mostly for debugging
Tune-61979-get.log 4080 Log file, useful mostly for debugging
These files should be available for 24 hours.