pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-81661-2144_Colonel_Thorntons_Strathspey.ps) >>/Users/jc/w/tmp/Tune-81661-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Gow/CSR/2144_Colonel_Thorntons_Strathspey.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Tune-81661-2144_Colonel_Thorntons_Strathspey.abc 1209 ABC music file with the extracted tune(s)
Tune-81661-2144_Colonel_Thorntons_Strathspey.ps 40875 PostScript
Tune-81661-2144_Colonel_Thorntons_Strathspey.txt 1209 Plain-text file with the extracted tune(s)
Tune-81661-get.log 11545 Log file, useful mostly for debugging
These files should be available for 24 hours.