Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/air/Stewart_SCAJMR_1784-V1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2239-Stewart_SCAJMR_1784-V1.ps) >>/Users/jc/w/tmp/Tune-2239-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/air/Stewart_SCAJMR_1784-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
Form_22399.log 939 Log file, useful mostly for debugging
Tune-2239-Stewart_SCAJMR_1784-V1.abc 158 ABC music file with the extracted tune(s)
Tune-2239-Stewart_SCAJMR_1784-V1.ps 6 PostScript
Tune-2239-Stewart_SCAJMR_1784-V1.txt 158 Plain-text file with the extracted tune(s)
Tune-2239-get.log 4312 Log file, useful mostly for debugging
Tune-22390-JohnTreat_GftF1.abc 154 ABC music file with the extracted tune(s)
Tune-22390-JohnTreat_GftF1.pdf 2217 Portable Data Format
Tune-22390-JohnTreat_GftF1.ps 6 PostScript
Tune-22390-JohnTreat_GftF1.txt 154 Plain-text file with the extracted tune(s)
Tune-22390-get.log 5043 Log file, useful mostly for debugging
Tune-22391-get.log 4027 Log file, useful mostly for debugging
Tune-22395-endo.abc 138 ABC music file with the extracted tune(s)
Tune-22395-endo.pdf 2217 Portable Data Format
Tune-22395-endo.ps 6 PostScript
Tune-22395-endo.txt 138 Plain-text file with the extracted tune(s)
Tune-22395-get.log 4690 Log file, useful mostly for debugging
These files should be available for 24 hours.