pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1902-018_My_Sheep_I_Neglected.ps) >>/Users/jc/w/tmp/Tune-1902-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Chappell/018_My_Sheep_I_Neglected.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_19020.log 143448 Log file, useful mostly for debugging
Coll_19023.log 263256 Log file, useful mostly for debugging
Coll_19025.log 1270764 Log file, useful mostly for debugging
Coll_19028.log 271686 Log file, useful mostly for debugging
Tune-1902-018_My_Sheep_I_Neglected.abc 961 ABC music file with the extracted tune(s)
Tune-1902-018_My_Sheep_I_Neglected.ps 40776 PostScript
Tune-1902-018_My_Sheep_I_Neglected.txt 961 Plain-text file with the extracted tune(s)
Tune-1902-get.log 5650 Log file, useful mostly for debugging
Tune-19020-get.log 3721 Log file, useful mostly for debugging
Tune-19021-get.log 4008 Log file, useful mostly for debugging
Tune-19024-get.log 4988 Log file, useful mostly for debugging
Tune-19028-get.log 8658 Log file, useful mostly for debugging
These files should be available for 24 hours.