Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/slide/Barsanti_CoOST.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2162-Barsanti_CoOST.ps) >>/Users/jc/w/tmp/Tune-2162-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/slide/Barsanti_CoOST.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Coll_21623.log 168958 Log file, useful mostly for debugging
Tune-2162-Barsanti_CoOST.abc 152 ABC music file with the extracted tune(s)
Tune-2162-Barsanti_CoOST.ps 6 PostScript
Tune-2162-Barsanti_CoOST.txt 152 Plain-text file with the extracted tune(s)
Tune-2162-get.log 4156 Log file, useful mostly for debugging
Tune-21620-cont_.abc 33 ABC music file with the extracted tune(s)
Tune-21620-cont_.pdf 2217 Portable Data Format
Tune-21620-cont_.ps 6 PostScript
Tune-21620-cont_.txt 33 Plain-text file with the extracted tune(s)
Tune-21620-get.log 4630 Log file, useful mostly for debugging
Tune-21627-get.log 3070 Log file, useful mostly for debugging
Tune-21629-Remick.abc 147 ABC music file with the extracted tune(s)
Tune-21629-Remick.pdf 2217 Portable Data Format
Tune-21629-Remick.ps 6 PostScript
Tune-21629-Remick.txt 147 Plain-text file with the extracted tune(s)
Tune-21629-get.log 10169 Log file, useful mostly for debugging
These files should be available for 24 hours.