Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/1806/Gow-CSR3-abc1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-4286-Gow-CSR3-abc1.ps) >>/Users/jc/w/tmp/Tune-4286-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/1806/Gow-CSR3-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
Find_4286.log 1533 Log file, useful mostly for debugging
Tune-4286-Gow-CSR3-abc1.abc 150 ABC music file with the extracted tune(s)
Tune-4286-Gow-CSR3-abc1.ps 6 PostScript
Tune-4286-Gow-CSR3-abc1.txt 150 Plain-text file with the extracted tune(s)
Tune-4286-get.log 9039 Log file, useful mostly for debugging
Tune-42860-get.log 8312 Log file, useful mostly for debugging
Tune-42863-get.log 4115 Log file, useful mostly for debugging
Tune-42866-get.log 4981 Log file, useful mostly for debugging
Tune-42867-CaledonianMusicalRepository_1806.abc 171 ABC music file with the extracted tune(s)
Tune-42867-CaledonianMusicalRepository_1806.ps 6 PostScript
Tune-42867-CaledonianMusicalRepository_1806.txt 171 Plain-text file with the extracted tune(s)
Tune-42867-get.log 4465 Log file, useful mostly for debugging
Tune-42868-get.log 2884 Log file, useful mostly for debugging
Tune-42869-EliasHowe_MusiciansCompanionP2-1843-V2.abc 176 ABC music file with the extracted tune(s)
Tune-42869-EliasHowe_MusiciansCompanionP2-1843-V2.txt 176 Plain-text file with the extracted tune(s)
Tune-42869-get.log 3694 Log file, useful mostly for debugging
These files should be available for 24 hours.