Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/AdvancedSD/CDSS_Gems.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1157-CDSS_Gems.ps) >>/Users/jc/w/tmp/Tune-1157-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/AdvancedSD/CDSS_Gems.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_11571.log 242810 Log file, useful mostly for debugging
Find_1157.log 1566 Log file, useful mostly for debugging
Tune-1157-CDSS_Gems.abc 152 ABC music file with the extracted tune(s)
Tune-1157-CDSS_Gems.ps 6 PostScript
Tune-1157-CDSS_Gems.txt 152 Plain-text file with the extracted tune(s)
Tune-1157-get.log 4081 Log file, useful mostly for debugging
Tune-11573-CJSurtees.abc 146 ABC music file with the extracted tune(s)
Tune-11573-CJSurtees.pdf 2217 Portable Data Format
Tune-11573-CJSurtees.ps 6 PostScript
Tune-11573-CJSurtees.txt 146 Plain-text file with the extracted tune(s)
Tune-11573-get.log 4853 Log file, useful mostly for debugging
These files should be available for 24 hours.