Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/CPC/RSCDS_Graded1.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8289-RSCDS_Graded1.ps) >>/Users/jc/w/tmp/Tune-8289-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/CPC/RSCDS_Graded1.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_82896.log 317284 Log file, useful mostly for debugging
Form_82895.log 1975 Log file, useful mostly for debugging
List82899.log 166 Log file, useful mostly for debugging
Tune-8289-Kohlers1.abc 153 ABC music file with the extracted tune(s)
Tune-8289-Kohlers1.txt 153 Plain-text file with the extracted tune(s)
Tune-8289-RSCDS_Graded1.abc 149 ABC music file with the extracted tune(s)
Tune-8289-RSCDS_Graded1.ps 6 PostScript
Tune-8289-RSCDS_Graded1.txt 149 Plain-text file with the extracted tune(s)
Tune-8289-get.log 7305 Log file, useful mostly for debugging
Tune-82893-get.log 8376 Log file, useful mostly for debugging
Tune-82897-get.log 1312 Log file, useful mostly for debugging
These files should be available for 24 hours.