Got HTTP status 404 Not Found for "http://john-chambers.us/~jc/music/book/1818/24CountryDances_1801_Preston.abc"
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-5527-24CountryDances_1801_Preston.ps) >>/Users/jc/w/tmp/Tune-5527-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/1818/24CountryDances_1801_Preston.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-5527-24CountryDances_1801_Preston.abc 165 ABC music file with the extracted tune(s)
Tune-5527-24CountryDances_1801_Preston.ps 6 PostScript
Tune-5527-24CountryDances_1801_Preston.txt 165 Plain-text file with the extracted tune(s)
Tune-5527-get.log 9852 Log file, useful mostly for debugging
Tune-55272-MoF.abc 140 ABC music file with the extracted tune(s)
Tune-55272-MoF.pdf 2217 Portable Data Format
Tune-55272-MoF.ps 6 PostScript
Tune-55272-MoF.txt 140 Plain-text file with the extracted tune(s)
Tune-55272-get.log 4683 Log file, useful mostly for debugging
Tune-55274-get.log 3134 Log file, useful mostly for debugging
Tune-55274-newpage.abc 144 ABC music file with the extracted tune(s)
Tune-55274-newpage.txt 144 Plain-text file with the extracted tune(s)
Tune-55275-572_Favorite_Strathspey-001.svg 14519 Scalable Vector Graphics format
Tune-55275-572_Favorite_Strathspey.abc 692 ABC music file with the extracted tune(s)
Tune-55275-572_Favorite_Strathspey.txt 692 Plain-text file with the extracted tune(s)
Tune-55275-get.log 4440 Log file, useful mostly for debugging
Tune-55279-get.log 3098 Log file, useful mostly for debugging
These files should be available for 24 hours.