pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-43972-02101-Bob_o_Dowally-1.ps) >>/Users/jc/w/tmp/Tune-43972-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/SCD/Book02/02101-Bob_o_Dowally-1.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
Form_43972.log 758 Log file, useful mostly for debugging
Tune-43972-02101-Bob_o_Dowally-1.abc 440 ABC music file with the extracted tune(s)
Tune-43972-02101-Bob_o_Dowally-1.ps 35199 PostScript
Tune-43972-02101-Bob_o_Dowally-1.txt 440 Plain-text file with the extracted tune(s)
Tune-43972-get.log 7504 Log file, useful mostly for debugging
These files should be available for 24 hours.