Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/ECPMH/MMM1.abc"
pscmd="(jcabc2ps /Users/jc/w/tmp/Tune-2342-MMM1.abc -F fmt/pdf_70.fmt +s 0.70 +maxs 2000 )>/Users/jc/w/tmp/Tune-2342-MMM1.ps 2>>/Users/jc/w/tmp/Tune-2342-get.log" returned status 35584.
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-2342-MMM1.ps) >>/Users/jc/w/tmp/Tune-2342-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/ECPMH/MMM1.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_2342.log 1156 Log file, useful mostly for debugging
Form_23427.log 863 Log file, useful mostly for debugging
Tune-2342-MMM1.abc 142 ABC music file with the extracted tune(s)
Tune-2342-MMM1.ps 0 PostScript
Tune-2342-MMM1.txt 142 Plain-text file with the extracted tune(s)
Tune-2342-get.log 8034 Log file, useful mostly for debugging
Tune-23420-CSR3-abc2.abc 158 ABC music file with the extracted tune(s)
Tune-23420-CSR3-abc2.txt 158 Plain-text file with the extracted tune(s)
Tune-23420-get.log 3240 Log file, useful mostly for debugging
Tune-23422-get.log 3322 Log file, useful mostly for debugging
Tune-23423-get.log 8679 Log file, useful mostly for debugging
Tune-23427-get.log 1348 Log file, useful mostly for debugging
Tune-23429-get.log 18556 Log file, useful mostly for debugging
These files should be available for 24 hours.