Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/waltz/AMHSI-abc1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6951-AMHSI-abc1.ps) >>/Users/jc/w/tmp/Tune-6951-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/waltz/AMHSI-abc1.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Form_69516.log 787 Log file, useful mostly for debugging
Form_69518.log 827 Log file, useful mostly for debugging
Form_69519.log 826 Log file, useful mostly for debugging
Tune-6951-AMHSI-abc1.abc 148 ABC music file with the extracted tune(s)
Tune-6951-AMHSI-abc1.ps 6 PostScript
Tune-6951-AMHSI-abc1.txt 148 Plain-text file with the extracted tune(s)
Tune-6951-get.log 5552 Log file, useful mostly for debugging
Tune-69510-cresc.abc 142 ABC music file with the extracted tune(s)
Tune-69510-cresc.ps 6 PostScript
Tune-69510-cresc.txt 142 Plain-text file with the extracted tune(s)
Tune-69510-get.log 3884 Log file, useful mostly for debugging
Tune-69511-BostonCollection.abc 153 ABC music file with the extracted tune(s)
Tune-69511-BostonCollection.txt 153 Plain-text file with the extracted tune(s)
Tune-69511-get.log 3292 Log file, useful mostly for debugging
Tune-69512-get.log 1424 Log file, useful mostly for debugging
Tune-69515-get.log 5047 Log file, useful mostly for debugging
Tune-69516-get.log 1424 Log file, useful mostly for debugging
These files should be available for 24 hours.