Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/reel/Remick.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4834-Remick.ps) >>/Users/jc/w/tmp/Tune-4834-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/reel/Remick.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_48348.log 966 Log file, useful mostly for debugging
Tune-4834-Remick.abc 143 ABC music file with the extracted tune(s)
Tune-4834-Remick.ps 6 PostScript
Tune-4834-Remick.txt 143 Plain-text file with the extracted tune(s)
Tune-4834-get.log 3980 Log file, useful mostly for debugging
Tune-48342-get.log 3497 Log file, useful mostly for debugging
Tune-48343-011_Fife_Scale.abc 876 ABC music file with the extracted tune(s)
Tune-48343-011_Fife_Scale.pdf 15230 Portable Data Format
Tune-48343-011_Fife_Scale.ps 32164 PostScript
Tune-48343-011_Fife_Scale.txt 876 Plain-text file with the extracted tune(s)
Tune-48343-get.log 5410 Log file, useful mostly for debugging
Tune-48348-Rutherford_Compleat_Collection_V1.abc 170 ABC music file with the extracted tune(s)
Tune-48348-Rutherford_Compleat_Collection_V1.ps 6 PostScript
Tune-48348-Rutherford_Compleat_Collection_V1.txt 170 Plain-text file with the extracted tune(s)
Tune-48348-get.log 4595 Log file, useful mostly for debugging
These files should be available for 24 hours.