Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/1811.abc/JamesOswald_CPC-abc1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6228-JamesOswald_CPC-abc1.ps) >>/Users/jc/w/tmp/Tune-6228-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/1811.abc/JamesOswald_CPC-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
Coll_62285.log 161666 Log file, useful mostly for debugging
Tune-6228-JamesOswald_CPC-abc1.abc 161 ABC music file with the extracted tune(s)
Tune-6228-JamesOswald_CPC-abc1.ps 6 PostScript
Tune-6228-JamesOswald_CPC-abc1.txt 161 Plain-text file with the extracted tune(s)
Tune-6228-get.log 4298 Log file, useful mostly for debugging
Tune-62280-get.log 1395 Log file, useful mostly for debugging
Tune-62281-AbrahamMackintosh.abc 157 ABC music file with the extracted tune(s)
Tune-62281-AbrahamMackintosh.pdf 2217 Portable Data Format
Tune-62281-AbrahamMackintosh.ps 6 PostScript
Tune-62281-AbrahamMackintosh.txt 157 Plain-text file with the extracted tune(s)
Tune-62281-get.log 5105 Log file, useful mostly for debugging
Tune-62284-get.log 4923 Log file, useful mostly for debugging
These files should be available for 24 hours.