pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-24602-10913_Thou_Art_Gane_Awa_Frae_Me_Mary.ps) >>/Users/jc/w/tmp/Tune-24602-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/Hamilton/HUTB1/10913_Thou_Art_Gane_Awa_Frae_Me_Mary.abc

Error exit status 256; here are some files to check:

[P=get.cgi V=1/1 B=0 scale=0.60 512x512 PNG]
filesizedescription
Tune-24602-10913_Thou_Art_Gane_Awa_Frae_Me_Mary.abc 743 ABC music file with the extracted tune(s)
Tune-24602-10913_Thou_Art_Gane_Awa_Frae_Me_Mary.ps 37216 PostScript
Tune-24602-10913_Thou_Art_Gane_Awa_Frae_Me_Mary.txt 743 Plain-text file with the extracted tune(s)
Tune-24602-get.log 5089 Log file, useful mostly for debugging
These files should be available for 24 hours.