pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6205-221_Cammolan.ps) >>/Users/jc/w/tmp/Tune-6205-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/WilliamCampbell/10thBook/221_Cammolan.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_62054.log 288545 Log file, useful mostly for debugging
Coll_62057.log 294166 Log file, useful mostly for debugging
Tune-6205-221_Cammolan.abc 1080 ABC music file with the extracted tune(s)
Tune-6205-221_Cammolan.ps 35157 PostScript
Tune-6205-221_Cammolan.txt 1080 Plain-text file with the extracted tune(s)
Tune-6205-24FavouriteDances_1784_Straight.abc 174 ABC music file with the extracted tune(s)
Tune-6205-24FavouriteDances_1784_Straight.txt 174 Plain-text file with the extracted tune(s)
Tune-6205-get.log 8136 Log file, useful mostly for debugging
Tune-62054-get.log 3321 Log file, useful mostly for debugging
Tune-62055-get.log 7378 Log file, useful mostly for debugging
These files should be available for 24 hours.