Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/1758/Gow-CSR2-abc2.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7818-Gow-CSR2-abc2.ps) >>/Users/jc/w/tmp/Tune-7818-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/1758/Gow-CSR2-abc2.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-7818-Gow-CSR2-abc2.abc 150 ABC music file with the extracted tune(s)
Tune-7818-Gow-CSR2-abc2.ps 6 PostScript
Tune-7818-Gow-CSR2-abc2.txt 150 Plain-text file with the extracted tune(s)
Tune-7818-get.log 4129 Log file, useful mostly for debugging
Tune-78184-Kauntze_CotmfD_VO.abc 154 ABC music file with the extracted tune(s)
Tune-78184-Kauntze_CotmfD_VO.txt 154 Plain-text file with the extracted tune(s)
Tune-78184-get.log 3312 Log file, useful mostly for debugging
Tune-78188-999_Contents.abc 8852 ABC music file with the extracted tune(s)
Tune-78188-999_Contents.gif 0 Graphics Interchange Format, the proprietary scan-line picture format
Tune-78188-999_Contents.ps 47489 PostScript
Tune-78188-999_Contents.txt 8852 Plain-text file with the extracted tune(s)
Tune-78188-get.log 4824 Log file, useful mostly for debugging
These files should be available for 24 hours.