Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/Book40/Kerr_MM1-V1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-352-Kerr_MM1-V1.ps) >>/Users/jc/w/tmp/Tune-352-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Book40/Kerr_MM1-V1.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_35222.log 121775 Log file, useful mostly for debugging
Tune-352-Kerr_MM1-V1.abc 150 ABC music file with the extracted tune(s)
Tune-352-Kerr_MM1-V1.ps 6 PostScript
Tune-352-Kerr_MM1-V1.txt 150 Plain-text file with the extracted tune(s)
Tune-352-get.log 4084 Log file, useful mostly for debugging
Tune-35210-get.log 1382 Log file, useful mostly for debugging
Tune-35215-get.log 1366 Log file, useful mostly for debugging
Tune-35219-get.log 1376 Log file, useful mostly for debugging
Tune-35224-get.log 5215 Log file, useful mostly for debugging
Tune-35226-get.log 4406 Log file, useful mostly for debugging
Tune-35232-get.log 4269 Log file, useful mostly for debugging
Tune-35235-get.log 1400 Log file, useful mostly for debugging
Tune-35240-get.log 1409 Log file, useful mostly for debugging
Tune-35245-get.log 1393 Log file, useful mostly for debugging
Tune-35249-get.log 1449 Log file, useful mostly for debugging
Tune-35253-get.log 3422 Log file, useful mostly for debugging
Tune-35254-get.log 3410 Log file, useful mostly for debugging
Tune-35261-get.log 1430 Log file, useful mostly for debugging
Tune-35265-get.log 1585 Log file, useful mostly for debugging
Tune-35269-get.log 1342 Log file, useful mostly for debugging
Tune-35274-get.log 1433 Log file, useful mostly for debugging
Tune-35279-get.log 1422 Log file, useful mostly for debugging
Tune-35283-get.log 5167 Log file, useful mostly for debugging
Tune-3529-get.log 83127 Log file, useful mostly for debugging
Tune-35291-get.log 1406 Log file, useful mostly for debugging
These files should be available for 24 hours.