pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-22683-512_Irish_Ship_Builder.ps) >>/Users/jc/w/tmp/Tune-22683-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/DftY/1803/Preston/512_Irish_Ship_Builder.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Coll_22683.log 285735 Log file, useful mostly for debugging
Tune-22683-512_Irish_Ship_Builder.abc 856 ABC music file with the extracted tune(s)
Tune-22683-512_Irish_Ship_Builder.ps 34326 PostScript
Tune-22683-512_Irish_Ship_Builder.txt 856 Plain-text file with the extracted tune(s)
Tune-22683-get.log 4770 Log file, useful mostly for debugging
These files should be available for 24 hours.