Got HTTP status 404 Not Found for "http://roaringjelly.org/~jc/music/book/kendy/Collections.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6830-Collections.ps) >>/Users/jc/w/tmp/Tune-6830-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/kendy/Collections.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_68308.log 2129 Log file, useful mostly for debugging
Tune-6830-Collections.abc 149 ABC music file with the extracted tune(s)
Tune-6830-Collections.ps 6 PostScript
Tune-6830-Collections.txt 149 Plain-text file with the extracted tune(s)
Tune-6830-get.log 9078 Log file, useful mostly for debugging
Tune-68300-get.log 55047 Log file, useful mostly for debugging
Tune-68302-get.log 3552 Log file, useful mostly for debugging
Tune-68304-get.log 1378 Log file, useful mostly for debugging
Tune-68306-24CountryDances_1782_Skillern.abc 167 ABC music file with the extracted tune(s)
Tune-68306-24CountryDances_1782_Skillern.txt 167 Plain-text file with the extracted tune(s)
Tune-68306-get.log 12608 Log file, useful mostly for debugging
Tune-68307-EliasHowe_MusiciansCompanionP1-1842-V2.abc 177 ABC music file with the extracted tune(s)
Tune-68307-EliasHowe_MusiciansCompanionP1-1842-V2.pdf 2217 Portable Data Format
Tune-68307-EliasHowe_MusiciansCompanionP1-1842-V2.ps 6 PostScript
Tune-68307-EliasHowe_MusiciansCompanionP1-1842-V2.txt 177 Plain-text file with the extracted tune(s)
Tune-68307-get.log 5706 Log file, useful mostly for debugging
These files should be available for 24 hours.