Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/mixed/SCD_Book49-V2.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8690-SCD_Book49-V2.ps) >>/Users/jc/w/tmp/Tune-8690-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/mixed/SCD_Book49-V2.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Find_86905.log 1734 Log file, useful mostly for debugging
Tune-8690-SCD_Book49-V2.abc 151 ABC music file with the extracted tune(s)
Tune-8690-SCD_Book49-V2.ps 6 PostScript
Tune-8690-SCD_Book49-V2.txt 151 Plain-text file with the extracted tune(s)
Tune-8690-get.log 9494 Log file, useful mostly for debugging
Tune-86900-Playford_COST.abc 150 ABC music file with the extracted tune(s)
Tune-86900-Playford_COST.ps 6 PostScript
Tune-86900-Playford_COST.txt 150 Plain-text file with the extracted tune(s)
Tune-86900-get.log 57726 Log file, useful mostly for debugging
Tune-86901-get.log 5856 Log file, useful mostly for debugging
Tune-86902-get.log 4768 Log file, useful mostly for debugging
Tune-86904-get.log 4069 Log file, useful mostly for debugging
Tune-86905-get.log 1376 Log file, useful mostly for debugging
Tune-86909-get.log 9213 Log file, useful mostly for debugging
These files should be available for 24 hours.