Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/1792/RSCDS_Graded2.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-912-RSCDS_Graded2.ps) >>/Users/jc/w/tmp/Tune-912-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/1792/RSCDS_Graded2.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Tune-912-RSCDS_Graded2.abc 150 ABC music file with the extracted tune(s)
Tune-912-RSCDS_Graded2.ps 6 PostScript
Tune-912-RSCDS_Graded2.txt 150 Plain-text file with the extracted tune(s)
Tune-912-get.log 4112 Log file, useful mostly for debugging
Tune-9122-get.log 3973 Log file, useful mostly for debugging
Tune-91228-get.log 6037 Log file, useful mostly for debugging
Tune-91238-get.log 4651 Log file, useful mostly for debugging
Tune-91240-BB50.abc 141 ABC music file with the extracted tune(s)
Tune-91240-BB50.txt 141 Plain-text file with the extracted tune(s)
Tune-91240-get.log 3074 Log file, useful mostly for debugging
Tune-91248-get.log 17792 Log file, useful mostly for debugging
Tune-91259-get.log 96478 Log file, useful mostly for debugging
Tune-91270-get.log 190789 Log file, useful mostly for debugging
Tune-91280-get.log 5483 Log file, useful mostly for debugging
Tune-91284-get.log 4029 Log file, useful mostly for debugging
Tune-91286-Konsta_Jylha.abc 149 ABC music file with the extracted tune(s)
Tune-91286-Konsta_Jylha.pdf 2217 Portable Data Format
Tune-91286-Konsta_Jylha.ps 6 PostScript
Tune-91286-Konsta_Jylha.txt 149 Plain-text file with the extracted tune(s)
Tune-91286-get.log 4940 Log file, useful mostly for debugging
Tune-91298-get.log 2840 Log file, useful mostly for debugging
These files should be available for 24 hours.