Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/hambo/BostonCollection.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1322-BostonCollection.ps) >>/Users/jc/w/tmp/Tune-1322-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/hambo/BostonCollection.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-1322-BostonCollection.abc 154 ABC music file with the extracted tune(s)
Tune-1322-BostonCollection.ps 6 PostScript
Tune-1322-BostonCollection.txt 154 Plain-text file with the extracted tune(s)
Tune-1322-get.log 4196 Log file, useful mostly for debugging
Tune-13220-get.log 12006 Log file, useful mostly for debugging
Tune-13222-get.log 1324 Log file, useful mostly for debugging
Tune-13223-get.log 7570 Log file, useful mostly for debugging
Tune-13224-get.log 4245 Log file, useful mostly for debugging
Tune-13226-get.log 10062 Log file, useful mostly for debugging
Tune-13227-get.log 4210 Log file, useful mostly for debugging
Tune-13229-24CountryDances_1809_Cahusac.abc 166 ABC music file with the extracted tune(s)
Tune-13229-24CountryDances_1809_Cahusac.txt 166 Plain-text file with the extracted tune(s)
Tune-13229-get.log 3514 Log file, useful mostly for debugging
These files should be available for 24 hours.