Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/slide/Gow-CSR-abc1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4383-Gow-CSR-abc1.ps) >>/Users/jc/w/tmp/Tune-4383-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/slide/Gow-CSR-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
Tune-4383-Gow-CSR-abc1.abc 150 ABC music file with the extracted tune(s)
Tune-4383-Gow-CSR-abc1.ps 6 PostScript
Tune-4383-Gow-CSR-abc1.txt 150 Plain-text file with the extracted tune(s)
Tune-4383-get.log 4114 Log file, useful mostly for debugging
Tune-43830-CSRHW-abc1.abc 147 ABC music file with the extracted tune(s)
Tune-43830-CSRHW-abc1.pdf 2217 Portable Data Format
Tune-43830-CSRHW-abc1.ps 6 PostScript
Tune-43830-CSRHW-abc1.txt 147 Plain-text file with the extracted tune(s)
Tune-43830-get.log 4884 Log file, useful mostly for debugging
Tune-43831-GoldenBookOfFavoriteSongs2.abc 163 ABC music file with the extracted tune(s)
Tune-43831-GoldenBookOfFavoriteSongs2.pdf 2217 Portable Data Format
Tune-43831-GoldenBookOfFavoriteSongs2.ps 6 PostScript
Tune-43831-GoldenBookOfFavoriteSongs2.txt 163 Plain-text file with the extracted tune(s)
Tune-43831-get.log 11824 Log file, useful mostly for debugging
Tune-43834-get.log 2718 Log file, useful mostly for debugging
Tune-43837-get.log 4996 Log file, useful mostly for debugging
These files should be available for 24 hours.