Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/Book38/SCD_Book49-V2.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4076-SCD_Book49-V2.ps) >>/Users/jc/w/tmp/Tune-4076-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Book38/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
Tune-4076-SCD_Book49-V2.abc 152 ABC music file with the extracted tune(s)
Tune-4076-SCD_Book49-V2.ps 6 PostScript
Tune-4076-SCD_Book49-V2.txt 152 Plain-text file with the extracted tune(s)
Tune-4076-get.log 4143 Log file, useful mostly for debugging
Tune-40760-MichaelDabney_12Minuets12Dances-1760-V2.abc 179 ABC music file with the extracted tune(s)
Tune-40760-MichaelDabney_12Minuets12Dances-1760-V2.pdf 2217 Portable Data Format
Tune-40760-MichaelDabney_12Minuets12Dances-1760-V2.ps 6 PostScript
Tune-40760-MichaelDabney_12Minuets12Dances-1760-V2.txt 179 Plain-text file with the extracted tune(s)
Tune-40760-get.log 5741 Log file, useful mostly for debugging
Tune-40764-get.log 4070 Log file, useful mostly for debugging
Tune-40765-get.log 3977 Log file, useful mostly for debugging
Tune-40766-get.log 4028 Log file, useful mostly for debugging
Tune-40767-get.log 3306 Log file, useful mostly for debugging
Tune-40769-get.log 4836 Log file, useful mostly for debugging
These files should be available for 24 hours.