pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-86529-1809_Cahusac_AK.ps) >>/Users/jc/w/tmp/Tune-86529-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/DftY/1809_Cahusac_AK.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-86529-1809_Cahusac_AK.abc 13142 ABC music file with the extracted tune(s)
Tune-86529-1809_Cahusac_AK.ps 123578 PostScript
Tune-86529-1809_Cahusac_AK.txt 13142 Plain-text file with the extracted tune(s)
Tune-86529-MM4-V1.abc 188317 ABC music file with the extracted tune(s)
Tune-86529-MM4-V1.ps 2088716 PostScript
Tune-86529-MM4-V1.txt 188317 Plain-text file with the extracted tune(s)
Tune-86529-get.log 262904 Log file, useful mostly for debugging
These files should be available for 24 hours.