Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/1800/Stewart_SCAJMR_1784-V1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-3146-Stewart_SCAJMR_1784-V1.ps) >>/Users/jc/w/tmp/Tune-3146-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/1800/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
Coll_31468.log 142895 Log file, useful mostly for debugging
Tune-3146-Stewart_SCAJMR_1784-V1.abc 159 ABC music file with the extracted tune(s)
Tune-3146-Stewart_SCAJMR_1784-V1.ps 6 PostScript
Tune-3146-Stewart_SCAJMR_1784-V1.txt 159 Plain-text file with the extracted tune(s)
Tune-3146-get.log 4318 Log file, useful mostly for debugging
Tune-31460-IgnatiusSancho_MCCD_v2.abc 159 ABC music file with the extracted tune(s)
Tune-31460-IgnatiusSancho_MCCD_v2.ps 6 PostScript
Tune-31460-IgnatiusSancho_MCCD_v2.txt 159 Plain-text file with the extracted tune(s)
Tune-31460-get.log 4368 Log file, useful mostly for debugging
Tune-31464-get.log 1391 Log file, useful mostly for debugging
Tune-31465-Straight_Skillern.abc 154 ABC music file with the extracted tune(s)
Tune-31465-Straight_Skillern.pdf 2217 Portable Data Format
Tune-31465-Straight_Skillern.ps 6 PostScript
Tune-31465-Straight_Skillern.txt 154 Plain-text file with the extracted tune(s)
Tune-31465-get.log 5085 Log file, useful mostly for debugging
These files should be available for 24 hours.