Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/JJC/Hamilton_Kerr_MM2-V1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7662-Hamilton_Kerr_MM2-V1.ps) >>/Users/jc/w/tmp/Tune-7662-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/JJC/Hamilton_Kerr_MM2-V1.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_76628.log 143414 Log file, useful mostly for debugging
Tune-7662-Hamilton_Kerr_MM2-V1.abc 156 ABC music file with the extracted tune(s)
Tune-7662-Hamilton_Kerr_MM2-V1.ps 6 PostScript
Tune-7662-Hamilton_Kerr_MM2-V1.txt 156 Plain-text file with the extracted tune(s)
Tune-7662-get.log 4272 Log file, useful mostly for debugging
Tune-76623-Gow-CSR1-abc1.abc 152 ABC music file with the extracted tune(s)
Tune-76623-Gow-CSR1-abc1.ps 6 PostScript
Tune-76623-Gow-CSR1-abc1.txt 152 Plain-text file with the extracted tune(s)
Tune-76623-get.log 8802 Log file, useful mostly for debugging
Tune-76625-Gow-CSR2-abc1.abc 152 ABC music file with the extracted tune(s)
Tune-76625-Gow-CSR2-abc1.ps 6 PostScript
Tune-76625-Gow-CSR2-abc1.txt 152 Plain-text file with the extracted tune(s)
Tune-76625-get.log 10003 Log file, useful mostly for debugging
Tune-76626-get.log 4070 Log file, useful mostly for debugging
Tune-76627-get.log 5938 Log file, useful mostly for debugging
These files should be available for 24 hours.